The imperial MPG figures are correct in this video but some of the conversions may be wrong as my convertor has proven to be unreliable.
@brlee3540
Жыл бұрын
Have you tried specifiying UK or US gallons to make conversions more reliable? they're different amounts at 1 uk gallon to about 1.2 us gallons.
@ConquerDriving
Жыл бұрын
Yes, definitely trying to specify it, sometimes I think it changes without me noticing. I'll be more careful with it in future.
@georgthesecond
Жыл бұрын
I didn't even know there're different gallons in UK and US. Now the MPG is even more confusing :D P.S: filling the car in litres adds up more confusion.
@Mike_5
Жыл бұрын
Don't sweat it CD the figures are just for indication but a very interesting topic presented well
@xxpyroxx1670
Жыл бұрын
no stop start systems are only there to. make ur car wear out faster. therefor parts break faster which require energy to produce and ship. more proof nobody is doing anything about the polution problem. cuz our answer is recycling but all that is, is shipping our toxic garbage to another country to fill up their land or even better just dump it in the ocean. which is were a good portion of our waste gos. the micro plastics are even in the food chain now. good job idiots yall dont deserve a planet to live on.
@maxkendal5152
Жыл бұрын
Stop start will save fuel. but, on many cars, puts extra wear into the starter motor and battery. If you drive whilst using aircon and other accessories, the car may have to restart to protect the battery. Potentially the money saved by the engine not running could be outweighed by replacing the battery and starter motor more frequently than in a traditional car.
@MarianoLu
Жыл бұрын
I cannot talk about starter motors, but by observation in the new cars with auto start stop they are more beefy than usual. On batteries I can talk with data, on a Jeep Wrangler JL the battery lasted exactly the same time while S/S enabled vs not. I disabled SS right after changing the battery since I thought that was the culprit but the second battery lasted exactly the same time. I got shy of 3 years on each. Note mine is the 2018 so no mild hybrid just the regular 3.6 v6 pentastar engine
@holymoly40
Жыл бұрын
Stop start does not save fuel in my car! Seat leon diesel auto. The difference is about 30 miles for every £100 of fuel. Tested it many many times, I'm an uber driver so do lots of miles 😢.
@maxkendal5152
Жыл бұрын
@@holymoly40 The fuel you save is neglible. I had a 2.7l V6 citroen a while back, it sipped 2l per hour at idle. smaller more efficient engines could use maybe about half to a third of that. Driving into London is hell for the starter and eventually the battery.
@largelampard3721
Жыл бұрын
@@holymoly40 If you didn't stop long enough, you'll use more fuel. I think this system have to be improved with a button for instant engine on/off. I keep the auto stop on, but I have to predict every stopping time to decide whether to turn off the auto stop and it's annoying.
@rowanmelville1310
Жыл бұрын
For me cars lasted forever long before it was invented, so I just leave it off to avoid the potential risks
@jamescaley9942
Жыл бұрын
It is more important to save your engine, than save a tiny amount of fuel. Keep the oil circulating, engine warm and battery charged.
@gravemind6536
Жыл бұрын
Also saves wear on the starter motor, battery and the alternator too.
@elefes.
Жыл бұрын
I've read that at low RPMs the oil circulation is not that good and that the battery charge at low RPMs is negligible.
@ZDProds-c8p
Жыл бұрын
Right nightmare stop start systems are. Stop at lights, car turns off. Stop at a roundabout, car turns off. Right faff on. It's safer to just use the break and keep the car ready to go so you can shoot off when needed, especially at roundabouts
@moustafaalbatran5304
Жыл бұрын
I passed today🎉🎉🎉 4 minors
@tomcat7493
Жыл бұрын
Well done! Drive safely
@picklestheswift
Жыл бұрын
Well done 👍
@ConquerDriving
Жыл бұрын
That's fantastic news! Thank you for watching and congratulations on passing!
@Benhutchie22386
Жыл бұрын
Congrats
@corstian_
Жыл бұрын
Well done!
@stevealexR1
Жыл бұрын
I lived in Colchester from ‘79 until ‘02 - the area around St. Botolphs and Balkerne Hill still look the same!
@amadexi
Жыл бұрын
9:05 Personally I never had any issue with the speed of start and stop. When I know that I have to react quickly I stay in 1st gear and don't engage it. When I can take my time and anticipate, I use it and then press the clutch a few seconds in advance. But I always take this approach when driving, I always like to keep good security distance and anticipate things because it allows me to use more engine brake for example.
@daviemac9925
Жыл бұрын
That was interesting Richard, I never used to bother about all these things before! Finally I've done the M6!! I got on at 44 and drove it to 19, with a wee stop for lunch at Southwhaite, after watching your video about the trip computer I got my Son to show how to reset mine. I got 61 MPG going but only 56 coming back. A few scary moments, but I've done it!!
@ConquerDriving
Жыл бұрын
That's impressive economy!
@Sly94
Жыл бұрын
I have a 2016 Golf 1.4 which I believe is basically the same car as your Seat learner car (just re-badged with slight alterations) and I agree on the stop-start comment. It takes a good 2-3 seconds for the engine to properly kick into life when you let the start-stop system start the engine, if you move away too quick you can stall and it feels like the engine is partially asleep or something. I've driven quite a few cars and even vans with start-stop and never experienced anything like how bad it was with the 1.4 VW Engine
@VasyaIvanovichPupkin
Жыл бұрын
26:55 Push the clutch, wait a seond (as opposed to immediately miving the shift lever), then put it in first. That was the sequence that resulted in easy shift into 1st. If this is true and consistent, and everything you have described suggests that it will be, this is the issue with the syncro not keeping up with the clutch disk, transmission shaft, and gears inertia. Easy solution to try is mixing about a qarter if the transmission fluid with syncromesh.
@jonisman2
Жыл бұрын
That issue with 1st gear when the engine is on happens on my car too, but not all the time, is weird lol sometimes is super smooth and easy and other times is hard, my car is older but still, weird lol, MODEL: Nissan Almera N16 1.5 dCi from 2004. Anyhow, great video!
@isettech
Жыл бұрын
For the answer consult the owner's manual for Diesel construction generators. You can buy the traditional ones and hybrid battery, inverter, diesel units. If you are pumping water on a steady load, then hybrid gains you very little. However running compressors, power saws, tools, a fridge, freezer, air conditioner, etc all have huge gains when running a light load so it can cycle off instead of running under light load part of the time. Same applies to cars. Ask any Prius or other hybrid car owner.
@ConquerDriving
Жыл бұрын
The way I understand it, one of the reasons why Toyota's hybrid system is so efficient, is because it can run the engine at high load to charge the battery even when the car is slow and then switch the engine off and use the battery. This works because when the engine is at high load it is more efficient than when it's idling or at low load. The hybrid system is all about allowing the engine to run at peak efficiency.
@GremlinSciences
Жыл бұрын
The reason for the confusion on how Stop-Start systems effect fuel economy isn't just because of the hot engine. Calling them a Stop-Start system in the first place is what causes the confusion, they don't _stop_ they engine, they _pause_ it. When you turn off the engine it cuts off the fuel supply and either does one final cycle to burn off any remaining fuel or the fuel-air mix as exhaust, but that isn't what the Stop-Start system does. The way stop-start systems work is they pause the engine mid-cycle when you stop and pick back up right where they left off when you start. The former is how people think the system works, and when you try emulating that you'll find that it _does_ burn through more fuel unless you're sitting for more than a few seconds. There is a bit of a problem with Stop-Start systems though in that the gas seals on the pistons don't work very well while the engine isn't running. It isn't a problem usually, but if you frequently find yourself at a dead-stop for long periods of time (several minutes straight) then you might find that a bit of petrol can leak into your oil.
@TheDude50447
8 ай бұрын
In the automatic version with the mild hybrid system the engines actually turn off when you go below like 20kph. I think thats because depending on electricity usage like AC around that speed the engine would start injecting fuel again which it doesnt when youre just coasting. So instead of that it just activates stop start. Of course everything like brakes is still powered.
@reiniernn9071
Жыл бұрын
30:07 Why do cars use more energy in rain? Some guesses. 1: Using more electricity (wipers, lights on (instead of being off...not valid in all countries) 2: When driving a car you must push the air out of the way (aerodynamic drag). When raining you have to push more weight out of the way...droplets do have much more weight as air molecules. (This is also the reason that you need more energy when it is cold....the air is more dense whenm colder...more weight/M^3...so you need more energy to push it aside...during rain it's mostly also colder. 3: Rolling resistance...When you drive you also have to push water aside with the tyres...this ioncreases the energy needed for rolling the wheel. 4: On the plus side, Maybe you're driving slower whiche decreases the needed amount of energy (Especially at the highway)
@AcuraAddicted
Жыл бұрын
Yes, it does. There is an Engineering Explained video on it from several years ago.
@stephengunnell5048
Жыл бұрын
I've been driving a Toyota Prius for over 10 years both city and long distance driving. Most of the Prius' fuel savings come from the ability to stop the engine when stationary. When driving long distance there is no fuel consumption difference between city and highway driving.
@bmw803
Жыл бұрын
To answer your Question about MPG. Canadian ratings follow U.S. EPA standards, meaning theyre rated in U.S. MPG and Metric L/100KM. Canadian monroney stickers display both MPG and L/100 KM.
@ConquerDriving
Жыл бұрын
Thank you.
@timl1481
Жыл бұрын
I have stop-start fitted to my car, and I hate it. Firstly, I've been in a situation where I've briefly stopped and then had to move away quickly. Because the engine had stopped, there was a momentary pause, and then I shot forward. It felt uncontrolled. Secondly, the extra work undertaken by the battery and starter motor should be taken into account, when considering individual small savings of fuel costs against the long-term potential costs of replacement parts. The only benefit in my eyes is potentially to the environment, however, I would turn the engine off anyway if I was in a queue for more than a couple of minutes.
@richardlytton
Жыл бұрын
What a brilliant explanation about pointless and annoying tech. Automatic wipers, anyone? Surely we can see when it's time to switch on our wipers.
@denzeljackson6505
Жыл бұрын
How I would suggest to get an accurate as you can get Reading is to go on a racetrack only yourself have a pre-planned trip example every 500 meters & 1km stop for around 30 seconds or less maybe for around an hour. Then the next day follow the exact plan route, I think your results would be as accurate as you can get
@jirisimo5446
Жыл бұрын
Okay... What this says is that stop start is good... But just for NA engines. If you have a turbocharger, it needs oil flow. Let's say You're driving along on a highway. Turbocharger heats up, but than You enter a city and the stop/start kicks in. Essentialy it would mean that oil flow through the turbocharger stops, oil at such high temperatures degrades. Yes I am aware that one or two times between oil changes would not make a huge difference, but stop/start will be (if turned on) kicking in much more often then once or twice between oil changes. It also means that the oil in turbocharger bearing will get toasted and basically it will stick to the bearing walls and the turbo shaft, eating up space for fresh oil to pass through. Basically You'll end up with blown shafts sealing, potencially even with damaged turbocharger as a whole unit. It will cost more money to maintain. In the end I don't see other benefits of having a stop/start than saving fuel (that money you save on fuel You'll end up putting in the maintanance bills). And also, if you're driving like long ways than You end Your journey with sudden engine stop - I don't think it is healthy even for NA engines because of headers - sudden temperature change can twist them - so that's also another nail in coffin. ¨ Otherwise great video! :)
@TimpBizkit
Жыл бұрын
I have one in my Cooper S, but sometimes it doesn't go off when I expect it to, and other times the engine dies at an inappropriate time, like a momentary pause in a queue to leave a freshly green light. Then sometimes it takes time to start when I press the clutch in and I hold up the line as if I'd stalled!
@TestGearJunkie.
Жыл бұрын
My own car doesn't have auto stop/start, but I remember the first time I drove a hire car with it, I thought I'd stalled 🤣
@mrcombiBedford
Жыл бұрын
Good video, of course if you switch OFF engine we save money, you forgot to mention, S S wears out the starter motor, clutch and battery, My diesel Honda CRV 45/55mpg 1st battery lasted 3 years? the mechanic said to switch it OFF 247 New battery just tested at 4 years is 87% good for another two years. He is replacing S.motors + clutches on 4/5 year old cars, Cold engine use MORE fuel. You did not mention the battery age and %, I did like the graphics.
@tejaspadhye
Жыл бұрын
thank you for adding rupee conversion for kpl!
@user-rfyl4t
Жыл бұрын
Another great video Richard! I find the same thing with my 2011 Mitsubishi Colt, it takes way too long to start the engine and go. I either end up keeping the clutch down to prevent the engine from stopping, or I have to spend time easing the clutch (or forgetting and stalling). I just disable the system altogether.
@AzizKhambati
Жыл бұрын
Thank you for this video, very informative the bits of information you share throughout the video.
@kiefershanks4172
Жыл бұрын
I think auto stop/start (at least from my experience) is not good unless properly designed. For example, Toyota hybrids are designed properly to stop/started all day long but to treat a conventional electrical system/starter motor like that just to save a bit of fuel is not smart. The lag of the systems also drive me a bit nutty. If more drivers were able to manage their momentum and keep their speed up rather than braking late and coming to full stops all the time, there would be little need for these systems. I suppose if you live in a densely populated urban area it could yield savings but I would almost say that at that point, maybe a car isn't the best choice of transportation. Like if you have bikes passing you, you probably would be better off biking instead of driving. You know? Right tool for the right job. These systems are trying to make up for the very obvious shortcomings of cars in certain operating environments which is to say, they are a band-aid solution.
@Lynsey516
Жыл бұрын
I don't use the stop start (ISP) on my car as I live in London and spend most of my time in slow moving stop start sort of traffic so the engine would be on and off constantly which must be bad for the starter motor?. When I bought the car the Starter motor was buggered, the previous owner probably had it on permanently. It does however run very smoothly when on (Kia Venga) as sometimes it turns itself back on and I don't always notice it straight away until I hear the engine starting up again when pulling off :)
@dathyr1
Жыл бұрын
This sounds a little similar to a Single Pedal Regen system in Electric vehicles. Learn something new everyday. Didn't know gas cars had this kind of feature. Does this stop/start feature only used in standard stick shifting vehicles, or do they have this in Automatic shifting vehicles? I am clueless on the start/stop feature and why needed. Anyway, thanks for the video. Take care.
@alexalan9017
Жыл бұрын
im not sure which company was the first to fit a stop start system to cars, but fiat in the 1980s had the fiat regata which the Citymatic system
@jogmas12
Жыл бұрын
Stop start does some things like more wear and tear on the engine and starter motor. I always disable it
@jmmorgenstern7005
Жыл бұрын
There's one thing it does do the stop-start craziness in your vehicle it kills the battery to stop-start craziness in your vehicle kills the battery
@teddy6888
Жыл бұрын
That small difference is worth it as you keep the climate control (A/C) running all the time when not using S/S. I'll rather be comfortable than save a little fuel.
@deego237
Жыл бұрын
Unless your engine starter is a brushless DC motor, I believe all your savings will go straight to repair the starter motor bearing and carbon brushes.
@ChlyDoris
Жыл бұрын
Regrding oilpressure; jep it gues away; BUT most of the channels ar still dull with good flowing oil, meanig the pressure is here quickly. But, I only use it as long as the oil is over 60°C, because there the oil begins to have the desired charakteristiscs Regarding the AC; but there is still quite alot of „missing“ energy stored in the heat exchanger. Well as long as the outside temp is under 30°C Using the System on a Manual is way better than in an automatik, because at every junction it shuts off the enginge and there you stand as a sitting duck for one second, at least with autohold…
@cliveradvan3414
Жыл бұрын
Interesting test. I am curious if the starter motors used are of a higher capacity than normal to cope with the repeated starts on every trip.
@lchan1977
Жыл бұрын
The start-stop feature was really to reduce carbon emission.
@JurisKankalis
Жыл бұрын
I know for sure several things the stop-start systems don't save - - starters, timing system components (chains or belts, tensioners, pulleys), engine and gearbox mounts, fuel pumps, glow plugs and relays, spark plugs, other electrical components - relays, ECUs who need to deal with all the inrush current again and again and again - and all other things in the car which deteriorate quicker because they get a constant high load force (upon starting the engine over and over and over). DOES ALL THAT - balance out - a few grams of petrol or diesel? ABSOLUTELY NOT. Does the car get a 5% better fuel economy and the respective manufacturer looks slightly better in the eyes of the legislator? And can the manufacturer then avoid paying ECO-crazy fines? Is the legislator in turn being a puppy for the voters (who have massively hopped on the "save-panda, polar bear and penguin bandwagon" lately - I mean.. you surely need SOME bandwagon to move your life forward, right)? Will the legislator have to deal with that vehicle his enactments (because his votes count) have ffcuked 100, 200, 300k miles or kms into its life-cycle? NO. That will be up to us. So thank you, panda, polar bear and penguin lovers. REAL GOOD THANK YOU. Edited: the guy seems to be somewhat smart (even teaching people how to drive) - but there is one MAJOR oversight here (specifically addressed at 14:46). The car's consumption computer CANNOT BE TRUSTED in scenarios like this. Upon just stopping, it always switches from 99.9l/100km to 0 - because you're not moving - and upon switching on and off - it will of course be absolutely incorrect. What should be done - is filling up the car with the same petrol preferably at the same tank (same pistol even) - to the brim with 1 or 2 stop-clicks. Then fill the car after the test - check the amount filled, again - with same 1 or 2 clicks - then make the other test with the system off. Otherwise - if the only and sole data point is the car's computer - sorry, but this test means nothing. Also - almost 10 l/100 km is a lot for that 2 litre 4cyl. Even despite the traffic jam - it's a LOT. My car has twice the HP, three times the Nm, twice the mass and twice the driven axles - and it consumes a liter less even with the traffic, and yes, it's a diesel. And it's probably also smoother (inline 6). Anyway. Thanks for the video - and yet another reminder that chronically green glasses really is a disease that prevents people from being friends with the reality.
@something8mydck
Жыл бұрын
Why does UK/ European places in general always look so bleak & grey. And why do Europeans get so defensive whenever someone mentions it
@C47F14P6
Жыл бұрын
I’ve always been curious. Over a long journey, does rev matching decrease fuel economy? Thanks for all these videos!
@ConquerDriving
Жыл бұрын
Not much, it's a hard test to do.
@matthewmorgan582
Жыл бұрын
I'd say it depends. On a downhill it'd probably save some gas if you're coasting and then bring the rpm's back up up the hill.
@JK061996
Жыл бұрын
I think the decrease in fuel economy is marginal, each time you're revving up the engine for a brief moment with basically no load
@clover7359
Жыл бұрын
Revving a standard modern 2.0L I4 with a 9kg flywheel from 2000 rpm to 4000 rpm using full throttle takes about 0.5 seconds, and the average fuel flow is 3.0 gallons per hour. That is 3 x 1/7200 or 0.00042 gallons of fuel. That's enough for you to drive 88 feet at 40 mpg. It's not nothing, but if you don't Rev match, the energy for revving up the engine will come from the momentum of the car when the clutch slips, and you'll have to replace that energy with the engine anyway so it really makes no difference at all.
@michaelthomas3646
Жыл бұрын
rev matching gear changes is mainly used for things like saving wear and tear on a clutch and gearbox, as for fuel ecconomy, then depends on accelerator usage, ie, out of gear, and hard acceleration and into gear quicker, then you would use more fuel, but gently reving up the engine over a couple of seconds before putting the vehicle into gear, you aren't forcing as much fuel into the engine in a shorter space of time. either way you would use more fuel over a journey than not rev matching, but the wear and tear on components like clutch and gearbox would be much better for the vehicle over say a 10 year period. but the savings over that period are more for clutch and gearbox wear. especially when rev matching is only over a short period of driving time, like from a company base to the motorway then the wear and tear on clutch and gearbox is a huge saving copared to fuel usage, but if rev matching the whole time for town driving, then you would probably just use more fuel, and only saving the clutch wear.
@eelcogg
Жыл бұрын
I feel most stop-start systems are over-eager when paired with automatic transmissions and will cut the engine just before wheels come to a complete stop. This causes really annoying jolts when stopping so if I'm driving an automatic it's the second thing I disable in slow traffic. The first one is the lane assist.
@vivahate100
Жыл бұрын
Agreed. I switch my automatic car Stop/Start off because it's just so sensitive and frustrating if you're creeping.
@aaronbryan5095
Жыл бұрын
A lot of these features on modern cars are so annoying, sure they are there to help pass all these safety and emissions regulations and maybe to sound cool on the brochure, but goddamn do they get irritating real fast.
@Zirikoi
Жыл бұрын
This almost caused an accident for me... I was driving Skoda Kodiaq 2019 and I came to a busy intersection, I was going to join the fast road and I saw a small gap I could squeeze into, but just when I hit the gas pedal the engine shut off and it took a few precious seconds to restart and I had to slam the breaks because no way I get into that gap any more and didn't want to be stuck in the middle of the intersection. It should cut the engine only when you have stopped completely. With manual it seems to have a good logic to it, but with automatic it's annoying...
@stephenhendricks7346
Жыл бұрын
MY VWs have never done that. Actually, I use so little braking force that sometimes I have to press harder (while having just stopped) to get the engine to stop.
@stephenhendricks7346
Жыл бұрын
@@vivahate100 The first day that I had stop start my wife and I disliked it. The next day we liked it. Took a while to see what the benefit was. VW engines always create some vibration. They don't when stopped. The startup is nice and gradual too. I sometimes drive to Frederick, MD. I can drive almost the entire distance (about 50 miles) with far less annoyance due to traffic. Around Harpers Ferry there are always backup and creeping traffic. Adaptive Cruise works well for this. When it stops it will automatically resume if the stop is only for a few seconds.
@littlevinster2224
Жыл бұрын
Hi Richard, I am just letting you know that I passed my New Zealand restricted licence test today! There is not much content online about the NZ restricted or full tests (especially nothing as detailed as your videos), so I appreciate them greatly! Even if the rules are slightly different, you have made me a more confident driver and have given me the more general information I needed to pass my test! Cheers, Vinnie
@ConquerDriving
Жыл бұрын
That's great to hear! Thank you for watching and congratulations on passing!
@Blue_Soul_Slayer
Жыл бұрын
Congratulations. There's one tip I'd like to spread since some people forget but you might already know this, but turn on headlights when it's raining. I was driving the other day and realized the poor visibility.
@N1rOx
Жыл бұрын
Remember to always indicate out of a roundabout. Even when you're going straight. Good luck when you go for you full!
@bobuk5722
Жыл бұрын
Hi and well done. Took me three goes, due to nerves. I've been driving now for 46 years, some of the time in London, and have never had points on my licence. Enjoy your new skill and treat each drive as an opportunity to learn and improve it. Remember, you have the weapon.
@mprebbz
Жыл бұрын
Ahhh restricted ! I remember those days! No passengers and curfew by 10pm .. but I remember similar elation
@javiTests
Жыл бұрын
29:35 There is something odd about those numbers. In imperial it seems the car consumes less with stop start (it makes sense), but in mpg us and L/100 km it seems the car consumes less without stop start 😅😅. I think without stop start it should be 9.8 l/100km and 23.14 mpg us if the imperial units are correct, right?
@bbaovanc
Жыл бұрын
in mpg US it says 26.8 vs 24.0, that's less without stop start as expected isn't it? Are you looking at the very end after all 10.5 miles
@javiTests
Жыл бұрын
@@bbaovanc You're looking at the final results, right?. I'm referring at the results at 29:35
@bbaovanc
Жыл бұрын
@@javiTests oh I see, I assumed that was the wrong timestamp
@markcary8165
Жыл бұрын
Just had to replace the starter motor in my 2011 BMW 530d due to being worn out from the stop/start feature. So worth balancing the cost of replacing that against any savings. (Also maybe worth allowing for the cost of the breakdown recovery when it leaves you with a non-starting car in the centre of Oxford!)
@Wannes_
Жыл бұрын
Yeah ... there went all you ever saved on gas, and more I worked for a courier company, about the first thing the owner told me was to always disable stop-start ! If you disable it, you should never have starter issues as they're made beefier to cope with more starts, thus last longer without S-S
@Mortalomena
Жыл бұрын
Its not worn because Start-Stop, its worn because its a BMW. Terrible reliability overall.
@j_taylor
Жыл бұрын
Was this the original starter? I've replaced starter motors more frequently than every 10 years. They do wear out.
@markcary8165
Жыл бұрын
@@j_taylor yes it was but I have also had cars for longer than this without needing them and remember, this is an updated starter motor. I’m not saying the lifespan was bad I’m just saying it would have lasted MUCH longer had I turned off the stop start
@scott8919
Жыл бұрын
12-13 years on something like a starter is pretty good. If it was a regular one you probably would have had it wear out in that time too. Anecdotally I know after a little over a decade I needed to replace one on a 99 Camry and that didn't have stop-start. A friend of mine has a 2008 Element that needed a starter replacement in 2021.
@lossminn
Жыл бұрын
In Canada we are familiar with US mpg but we officially use the L/100km system.
@sunspot478
Жыл бұрын
The reason why your transmission is easier to get into first gear with the autostop active is because to activate it, the clutch has to be engaged (foot off pedal) when you are stopped. You engage the clutch (foot on pedal) in order to re-start the engine, but in doing so, you're actually doing something else necessary to engage gears smoothly: You get everything rotating again. When your engine is stopped and your car is not moving, all of the components in your transmission have stopped moving too. As the engine restarts, it begins everything spinning again inside your transmission because it's still in the process of disengaging the clutch as it's starting. Some of that rotation is transferred through to the transmission just before it completely disengages. Synchromesh transmissions really don't "synch" all that well unless the components inside it are rotating. In order for gear engagement to be silky smooth, you have to get everything moving inside your transmission again, and that's exactly what your starter is doing when it re-starts your engine JUST as you're depressing the clutch pedal. With the autostop inacative, it doesn't get a chance to do this. Coming up to a stop, you disengage the clutch, pop it into neutral, and sit for a few seconds. What happens then if you're sitting long enough is that all of those gears and synchros and shafts inside your transmission come to a stop as well, and then when you want to move again, you are trying to force the 1st gear synchros to engage without any rotation in the transmission components. The extra effort required to get it into 1st is your transmission synchronizers protesting. There are several solutions for this ... - Just before you try to jam it into 1st after sitting and WHILE IN NEUTRAL, let your foot off the clutch all the way and then immediately depress the clutch pedal again. What this will do is get everything rotating again. Then try to engage 1st. - Try engaging another gear first, like 2nd or 3rd. Sometimes they will be "more aligned" than 1st gear synchros and when you engage those gears, you may cause the 1st gear synchros to move into a better alignment for engagement. (It's another way to get things moving in there. Do you see the common theme?) - If you are at a short stop, don't take it out of gear to begin with. Leave it in 1st gear. Side note: You can engage 1st just as you're coming up to a stop. But be ginger. Those synchros really need to speed up if you're going to do it this way. Like ... 5kph or lower tops. - If you're at a longer stop, try leaving the transmission in neutral (foot off clutch) and then when you're ready to go, depress the clutch pedal, pop it in 1st and away you go. If you do it this way, you will find that it shifts into 1st like a hot knife through butter ... That's because everything inside your transmission is still rotating and already up to speed! By the way... This **IS NOT** a fault of the transmission or the car. It's how a manual transmission works.
@orbital1337
Жыл бұрын
Yep, this is exactly it - its the synchros. Though this is definitely something that is worse on some transmissions than others. I have an NC Miata and I also noticed that this car is more finicky with shifts into 1st compared to other manuals I've driven. I guess the design must be similar. I always quickly shift into 2nd and back into 1st if I notice significant resistance.
@ConquerDriving
Жыл бұрын
Yes I understand this, although I like to use neutral for even a short stop as I like to stay off the clutch. Also, it is a design fault of the transmission because most manual gearboxes don't have this problem. When the oil is properly hot it doesn't have this problem. This gearbox is known to be weak and I think it's on it's 4th iteration, also a dual mass flywheel was needed to protect it too. The transmission on the previous generation car was a bit heavier but seems to be more reliable.
@uhhh684
Жыл бұрын
how does this correlate with auto trans? My car has a auto shut off feature.
@sunspot478
Жыл бұрын
@@uhhh684 It doesn't. This thread applies only to manual transmissions.
@TheKiller1922
Жыл бұрын
One of my previous cars had a rather worn rear gear. This clutch depress-press technique was the main way for me to make the gear engage properly. They are usually desynchronised anyway, so any wear doesn't contribute to smooth shifting. Another good example, albeit not related to transmission, is turning the wheels when standing still vs moving. Rolling friction, as opposed to static friction when standing still, eases turning considerably and saves the resource of the steering mechanism and amplifier.
@happywong1671
Жыл бұрын
Keep in mind that the starter motor will be used every time during the used of autostart on. Then eventually you will need to replace it. Cost of saving a little gas will cost a lot more replacing the starter motor.
@joshlucas4269
Жыл бұрын
I just want to say I passed my test last week with 2 minor faults. Thank you for all of the videos as they have been super helpful :)
@ConquerDriving
Жыл бұрын
That's great news! Thank you for watching and congratulations on passing!
@Avdlp
Жыл бұрын
perfect timings! And that is not a neglegible saving. Also, I know that the last version of Fiat Panda, the mild hybrid, equipped with 3-cyl NA "Firefly" engine has an interesting stop&start system with BSG and an auxiliary battery (under driver's seat) that allows to have the engine turned off not only when the car is still, but also when coasting in neutral, under 30 km/h, in safe conditions, while keeping all the services on. I watched your driving in Madeira and this S&S video makes me wonder if you noticed it (but didn't mention since it was not the point of that episode). Greetings 👋🏼
@ConquerDriving
Жыл бұрын
I did mention it actually. It had a good stop start system. At least I think I remember mentioning it.
@TheOriginalGeekyNoob
Жыл бұрын
Lots of variables at play here, including engine size of course - but from ten years of mapping Engine Management systems I can tell you that you need a decent size shot of fuel to get a warm engine to catch reliably, so, unless you are stationary for a LONG time, the difference is pretty negligible in most cases.
@ChrisJames-pq6gg
Жыл бұрын
not about saving fuel its about cutting emissions probably used more fuel the constant starting
@r3act-
Жыл бұрын
If you consider the amount of wear, thus the cost of repairs, on your starter, battery and flywheel, I doubt you'll be happy about saving a few bucks on fuel per tank. And for those saying that Start/Stop systems should be more environment friendly at least (by saving fuel), don't forget that manufacturing and transporting the replacement parts I just mentioned also consumes fuel :)
@GeneralArmchair
Жыл бұрын
The kind of people that support these regulations and systems are the sorts that are easily dazzled by shell games. I'm sure that they are also big fans of "free" government services paid for by their tax dollars.
@SHDW-nf2ki
Жыл бұрын
As a mechanic I was never over concerned with fuel consumption, for me I always worried about the starter motor in these kinds of systems.
@rickyarmstrong9267
Жыл бұрын
I do not think it will save enough to keep replacing the starter
@corroded
Жыл бұрын
Interestingly the first stop start system was developed all the way back in 1974 by Toyota. My car does have stop start but I nearly always turn it off, it's a relatively limited run engine. I want to keep the car up to full operating temperature and it's very difficult to get it there as the stop start kicks in well before it's reached proper temperature, so it's just fighting the stop start to keep the temperature.
@yvoferdinandvanderhoek1027
Жыл бұрын
Why do you think under conditions that your oil stays low heat these days it's even needed to have hot oil?
@grolfe3210
Жыл бұрын
I remember stop-start on a VW Polo back in 1981 (Mk 2 version Formel E model) and thought that was the first time it was used but you are a few years ahead of that.
@wyxzol
11 ай бұрын
@@grolfe3210 I had a mk 2 golf c formel e in 1984 that also had the stop start system.
@medicalstudybuddy2964
Жыл бұрын
Just wanted to drop a thank you. Your videos really helped me pass on third attempt at one of the top 15 most difficult test centers in the UK. I found it so reassuring to hear your story as well on how you passed your test. Thanks for the great videos!!
@ConquerDriving
Жыл бұрын
That's great to hear. Thank you for watching and congratulations on passing!
@flimbar
Жыл бұрын
Not a fair comparison, he changed his socks
@davidellis279
Жыл бұрын
You’ll find it’s a better option NOT to use the stop start function on your car because the cost of a starter motor or an alternator far exceeds the cost of fuel saved but at the end of the day it’s your choice,I’ll stick with switching this feature off. Keep switching the engine off and on is NEVER a good idea but the manufacturers couldn’t give a toss about that once you are paying the repair costs.
@vitordelima
Жыл бұрын
Also the engine inner surfaces, lubrication, seals... will be ruined.
@fasttrackblastback8286
Жыл бұрын
I understand cars with stop/start to have a different type of alternator and starter motor and battery that allows the car to stay engaged whilst the engine is off.
@2010ngojo
Жыл бұрын
You assume the starter motor or alternator aren't designed with frequent starts and stops in mind. They should at least last within the warranty period.
@2010ngojo
Жыл бұрын
@@vitordelima Shouldn't lubrication stick to the walls at least for a short time? Stopping for a few minutes shouldn't affect that.
@davidellis279
Жыл бұрын
@@2010ngojo I’m not assuming anything,my friend has an Auto-electric business and has traded for over 50 years so I think he knows what he’s talking about and he’s regularly changing alternators on these stop start vehicles once they get 4/5 years old if the owner constantly use’s the system. These components are very expensive and sometimes very difficult to get at so Labour charges are not cheap either. The amount of fuel saved is negligible when compared to these expensive repair costs,also shutting a diesel
@bbaovanc
Жыл бұрын
I think the reason it's harder to go into first with the stop-start disabled is because when the engine is idling in neutral, then all the gears in the transmission are spinning at idle speed. When you put it in first, then it has to stop all those gears to match the car which is stopped. But when the engine is stopped, then those gears are already stationary.
@Charlesbjtown
Жыл бұрын
There are actually very few "gears" in a transmission. It's actually more drums than anything. And aside from that, when stopped, the only thing spinning transmission wise.... is the torque converter.
@bbaovanc
Жыл бұрын
@@Charlesbjtown @Charlesbjtown this is a manual transmission though, so no torque converter. When you're stopped, in neutral, with the clutch engaged then, by my understanding, the engine is rotating all the gears on the input shaft at the engine speed, just since there's no gear engaged then none of the synchros and output shaft are spinning, so the car isn't moving. But the transmission still has a bunch of gears moving and carrying some inertia which I imagine you might feel when trying to push it into 1st gear, which requires stopping everything in the transmission, so it lines up with the wheel speed
@bbaovanc
Жыл бұрын
@@Charlesbjtown in an automatic transmission you would be right though, you keep it in drive when stopped and let the torque converter slip to make up for the difference in speed between engine and transmission, rather than neutral with both transmission and engine moving at same speed due to clutch being engaged
@andrewchester7935
Жыл бұрын
Interesting video. You could do a video on different fuel types (diesel, E10, E5 etc) and which one is the most efficient.
@antti_kukkonen
Жыл бұрын
Yes, the difference between E5 and E10 would be interesting, especially 98E5 vs. 95E10 because 95E5 isn't sold in many European countries
@officer_baitlyn
Жыл бұрын
same efficiency per kg of fuel on gasoline e10 and e5 etc as far as i know the u need more e10 than non ethanol gasoline in liters therefore u get seemingly worse economy, though usually ethanol fuel is cheaper so it comes out to be the exact same cost per km (as long as the car is compatible with those fuel types)
@Watson2108
Жыл бұрын
From my experience it depends… Some vehicles consume significantly more fuel so that it equals out the price difference. On others, the consumption stays the same and you can save quite a bit of money.
@Grahamvfr
Жыл бұрын
Great video.. The channel 'engineering explained' suggested after 7 secs of idling, you are using more than the extra used for start up. Will differ car to car of course.
@bartoszk4812
Жыл бұрын
Great video! 👍 2p a mile doesn't seem much saving but with 15k annual miles that would amount to £300, if all those miles would be done in the city. I'd still be worried about engine wearing out faster when it's subjected to many cold starts when it wears the most. 🤔
@Naoquerose
Жыл бұрын
Cars with the start.stop system from factory has improvements in the engine itself to prevent this type of damage. If you turn.off and turn on an engine that's not equipped with this from factory, you are 100% correct.
@Wannes_
Жыл бұрын
You'd only get that kind of savings if you'd do all those miles in similar traffic, with lots of stopped time. Typically, stop-start doesn't work until the engine is warmed up
@bartoszk4812
Жыл бұрын
@phaa84 What kind of improvements are you talking about?? 🤔 for example, Ford Ka mk2 with or without start stop has the same 1.2 Fiat engine in it, and I am not aware that the ones with start stop would have anything different apart from upgraded starter motor and more expensive battery (AGM or EFB), otherwise engine, oil, filters are all the same.
@bartoszk4812
Жыл бұрын
@Wannes_ yes I said, that you'd have to drive in a city to get that, which many people will. My friend has a 17 plate Kia Sportage and it switches the engine off even when it's cold, but he usually switches the start stop off as it takes longer for his diesel engine to warm up. I'm sure some makes have software preventing system from working on a cold engine. I don't have start stop in my old Focus but still I switch it on if I'm on traffic lights with long waiting times or in heavy traffic, for the sake of the environment as I drive old smoky diesel.
@gjermundification
Жыл бұрын
This auto-stop/start thing are amongst the most efficient way to shorten the longevity of the engine in combination with DPF( in which melts the turbo down the line, ) E10( in which makes hoses rot, ) bio fuel( too much bio mass in the fuel system makes wear in new unknown places, ) and EGR( in which is a rebreather in which forces the engine to use the same air more than once. )
@squadmeta
Жыл бұрын
Such a negative view. Also, entirely accurate! 🤣
@gjermundification
Жыл бұрын
@@squadmeta Negative? As long as science is jeopardized by politics it's important to underline the obvious.
@bofor3948
Жыл бұрын
I have had two fords with stop/start a mondeo mk4 and my current car a CMax both diesels. The system works well although I have never tried a similar test. Never any issues with pulling away after an auto engine restart. My main problem with the system when I owned the Mondeo was frequent stop start in heavy town (London) conditions. Yes the engine has less issues once warm with starts but the current consumption to restart is still quite high (much lower than cold start , but still high) I found it killed the battery much more quickly than a car without the system. As a result I switch the system off if it becomes frequent. The batteries used are a compromise between an auto starting and a leisure battery (caravan etc) to take the regular high current discharges. I do not have faith in that compromise. The Mondeo's battery suffered shorted plates. The second battery lasted two years before it too died. Think I prefer to maybe use a little more fuel?
@squeakers27
Жыл бұрын
Hi Richard, once again thanks for the amazing well explained video. All though I do like to enjoy my car when i have the chance too, when i am simply driving around town or doing a long journey, I like to save as much fuel as possible as a sort of challenge to myself. Interesting enough, I have a 2007 R56 Mini but it's an April 2007 car so it doesn't have the start stop system which you even mentioned in the video was introduced in August 2007, but when i get to traffic lights which I know will be a long wait, i just manually do the start stop myself as long as the engine is up to temperture, although i would like to retrofit the system if possible. My thoughts on it is that engineering explained did a video on start stop and 'did the maths' behind it, the fuel needed to start the average engine is the same as idling for 7 seconds so if you're stopped for longer than 7 seconds, start stop is saving fuel each second after that. It is impressive how they did find a way to make the starter engage very quickly and using new battery technology whilst also not causing any extra wear on the engine, system has been around a while and seemingly no problems caused by it.
@keithvers569
Жыл бұрын
Other than the cost of a new starter motor when you wear it out
@ExaltedDuck
Жыл бұрын
The difference is way bigger than I would have expected, yet not so far off from each other that there's a clear enough difference to ascribe fully to the stop/start feature. Also, a 10-mile survey period is very short and likely magnifies any variation that could occur with road and traffic conditions. A more rigorous approach might be to flip a coin before any given trip and let that coin toss decide whether or not to use stop/start. Then record distance, weather and traffic conditions average speed, number of full stops, etc. for a long period, such as a month or two. Then all that data can feed into a proper analysis of variation to show just how much impact such a system has.
@georgesbv1
Жыл бұрын
yet, it assumes it doesn't need heating or cooling. Also the car is very hungry. Usually for 185HP you need a turbine even for 2 liter engine.
@bulentkulkuloglu
Жыл бұрын
Not so far off???? More than 10% difference is so far off. In fact if urban driving is what you do most, 10% less emissions and carbon burning is worth it, even if starter wear and more expensive battery eat up all the fuel cost savings.
@egaskrad
Жыл бұрын
11% is a lot. I would have thought 2~3% at most, taking it as an appreciation for a cleaner environment. Can't believe that there is some economical gain in it.
@ExaltedDuck
Жыл бұрын
@@bulentkulkuloglu what I mean is one test on this short of a drive is not enough to make a statistically valid claim. If the difference is 10% that is definitely enough to be worthwhile but this data set does not convince me that the difference truly is 10%.
@itsmocraft9182
Жыл бұрын
I passed my test today with 3 minors and had an absolutely amazing examiner to do it with. I am super grateful for the examiner I had. Thank you, Conquer, for driving for your videos they have helped me to pass my test today 👏.
@beamboy07
Жыл бұрын
I thought it would be an adult conducting the test? Not 3 kids
@itsmocraft9182
Жыл бұрын
@Tom Elwood No I meant three driving faults
@itsmocraft9182
Жыл бұрын
@@beamboy07 No, I meant three driving faults
@ConquerDriving
Жыл бұрын
That's great news! Thank you for watching and congratulations on passing!
@moonlet4766
Жыл бұрын
Just wanted to thank you for your videos man! I just passed my drivers license test today first try, thanks in large part to your videos. Although we don't drive on the left in my country, your videos were still the best advisory content on the entirety of youtube (atleast among the languages I know). Keep up the great work!
@ConquerDriving
Жыл бұрын
That's really great to hear! Thank you for watching and congratulations on passing!
@ironwolf3699
Жыл бұрын
What I am worried about, without any research, is if the starter is designed for stop start. Normal starters get really hot when starting a car. They also don't have any sort of cooling. If it constantly springing on and off, it could wear the starter pretty fast.
@elenabob4953
Жыл бұрын
This is why you have an reinforced starter for the cars with this options.
@ironwolf3699
Жыл бұрын
@elenabob oh ok, because I saw a video of a person using a starter motor from a normal car to drive a bicycle. They had an issue where the motor would overheat.
@GeneralArmchair
Жыл бұрын
You're completely correct. These auto-stop feature are scams that just make midwits feel good about themselves. Some fools will say that it's fine because the starters are beefier when used with these systems, but they neglect to mention that while the starters might be good for 2 to 3 times as many usages as a standard starter, the actual usage rate of the starter shoots up 10x or more so you're still losing out in the end. The absolute best thing that you can do for the environment is disable this garbage feature. The environmental cost of the extra maintenance is worse than burning a little extra gas.
@pauledwards2817
Жыл бұрын
Well, think it says a lot about car drivers that hardly any of the comments are about saving the poor pedestrians from the fumes coming from idling cars as they crawl along congested city streets.
@DrRyan82994
Жыл бұрын
easier to find a diesel owner talking about how much better their car runs without emmisions controls
@ikt32
Жыл бұрын
Engineering Explained has made a video about it, which is pretty compelling - 7 seconds idling equates to 1 start, pretty much. I personally disable it, except for when I have the feeling I'll be stopped for >20 seconds. Too much stop/starting can't be good, I still feel.
@maksymfedoriaka2851
Жыл бұрын
Starters and batteries are significantly beefed up for cars with start-stop system, so I wouldn't worry too much about it. But when the battery dies (as all of them will), replacing it will be more expensive
@jasonking1284
Жыл бұрын
Stop Start was created for the "feel good" factor rather than any real impact on anything...
@Xzibitfreek
Жыл бұрын
@@jasonking1284 Start/Stop was created for fuel economy and environmental impact. Its also more pleasent for the surroundings, its less noisy and the air is less polluted. And the argument that "Starters are batteries are more expensive" isnt really much of an argument because every single combustion engine produced in 2023 has the start/stop feature and the components required for it, unless youre deciding between a newer car and an older one that might not have start/stop
@SteveN-pw4dj
Жыл бұрын
I have 3 cars with start stop tech, none of them work in this mode anymore. But when they did i never noticed more MPG.
@shellbatronic
Жыл бұрын
Really interesting video. And thank you! I moved to the UK 8 months ago and today I passed my practical driving test! I never would have been able to without your helpful videos. Thank you so much for what you do!
@ConquerDriving
Жыл бұрын
That's great news! Thank you for watching and congratulations on passing!
@Herbertti3
7 ай бұрын
I had renault clio (2009) for 3 years and it had stiff 1st gear when cold and now I own dacia sandero (2021) and same again, 1st gear stiff when cold. Seems to be quite common issue.
@Chris_the_Muso
Жыл бұрын
We had a CX5 diesel with stop/start for six years. Stop start saved us about 1 litre per year, (because, diesel) but I had to replace the stop/start battery three times over that period. None of the batteries were eligible for warranty (because, stop/start) and they are expensive batteries. So, we saved less than $10 in fuel, but it cost about $900 extra in batteries. Maybe more, since for comparison the ute that I had for all of that period never had a battery replacement once while the CX5 saw four batteries in that period (the original, two replacements, plus the one I had to put in it just before I got rid of it). Petrol engines use a lot more fuel when idling (maybe a couple of litres per hour for a 2L 4 cylinder) however I'm still not a big fan of stop start. No matter how much fuel it can save in a passenger car it's still extra wear and tear on battery systems and starting systems. Since my wife passed away last year I sold the CX5 and bought a Suzuki Jimny - a more economical vehicle (if you drive it appropriately) with much simpler systems, and no stop/start rubbish. I don't miss it at all.
@bmw803
Жыл бұрын
It's the biggest pile of garbage that climate alarmists came up with. Turn that shit off and forget about it. It's cheaper to buy the car software adapter than replacing a starter, battery and wearing the engine prematurely.
@benmacca1
Жыл бұрын
Passed on the 13th with a New 23 reg on the way at 17!! Your tips helped me a lot to pass with 2 minors.
@ConquerDriving
Жыл бұрын
That's great news! Thank you for watching and congratulations on passing!
@sunspot478
Жыл бұрын
On an unrelated note, it baffles me having autostop always engaged when starting up. It should be an option. Actually ... Much of the "driver support" crap should be optional - including anti-lock brakes. ABS (learn threshold braking), autostop (Just... why?), blind spot warning (Always shoulder check), rear view cameras (Use your mirrors), collision avoidance (stop texting), radar cruise control (pay attention!), lane departure warning (get more sleep), etc etc ... They're all designed for people who don't know how to drive or are too lazy to learn properly.
@garyszewc3339
Жыл бұрын
The start-stop system isn't meant to save gas. The system is designed to reduce emissions.
@fauzanriez9472
Жыл бұрын
The intention is to reduce CO2. Fuel saving is a bonus. I mean, that's what they are doing all this while isn't it? Downsizing and turbocharge, start stop system, hybrids, PHEV.. they all have the same objective. And the ultimate product is of course the EV cars.
@DjNikGnashers
Жыл бұрын
Nice video, interesting and informative thank you. I had the start/stop coded out on my M140i so it defaults to off at every start. I hate stop/start but it's just a personal thing, I didn't buy an m140i and tune it to worry about fuel consumption, but I did find your results very interesting so for those who do care, it seems stop/start does save money. Now, there is an argument to say it wear components more, as the engine does wear more on a start, and it also wear the starter and other components more, so in the long run you might have bigger bills replacing the large worn parts.
@AnimeRoot
Жыл бұрын
Start stop has hidden costs, wear of the starter, more strain on the battery and charging systems. Oil pump, and oiling issues leading to extra wear on the engine in general. Engine mounts and fuel pumps are another problem not addressed as well. I've had family and friends with this feature and these issues have and do occur. Manufactures only care about hitting mpg numbers, and the car lasting just till end of warranty. After that it's on you. My buddies have disabled these fuel saving features and have never looked back.
@simonr23
Жыл бұрын
I haven't been able to absorb all of what you've said, but did you compare the cost of the bigger batteries stop/start systems use vs the fuel they save? what about the time cost? stop start is slower than taking off with an idling engine - and if you have some mechanical sympathy you should also take off quite gently and give the engine 5-10 seconds to recover oil flow/pressure. plus the extra wear on starter motors, engine mounts and the big ones, oil dilution and turbo's and their oil feeds should be factored into total cost of the system vs cost of the fuel saved.
@Xzibitfreek
Жыл бұрын
time cost? what time cost? nobody is losing any time because of start/stop. the vast majority of situations you can predict when its time to accelerate. youre at a traffic light, 2 cars in front of you. light goes green, you need to wait for the cars in front to accelerate first, by the time its your turn to accelerate, there is no time difference. even if youre first at a traffic light, i cannot imagine a half a second difference to have any time impact at all. for some reason there is a lot of pessimism about start/stop and a lot of half knowledge without much evidence backing arguments like yours. maybe its the fact that you have a little less control over the car is what scares people and try to form a narrative and fill in arguments that may be convenient. its just like he said, there arent millions of engines dying because of start/stop, i cant find any major institution that ever officially confirmed that start/stop in any way shape or form hurts the engine compared to not using the feature. the cars and components are DESIGNED with this feature in mind, its not like they put this feature into every car with no thought, the cars with this feature were designed with start/stop in mind. thankfully this discussion will die as electric cars take over and its not really a topic with electric cars.
@simonr23
Жыл бұрын
@@Xzibitfreek ok. I guess I’ll take my 23 years in the mechanical industry, coupled with 10yr arms experience as an owner and repairer of cars with stop/start systems and bow down to your condescending rant? I can’t make anyone change an opinion, but I will offer points for people to consider. The battery issue alone is very real for many owners - except those who only keep cars for the first 1-3yrs of the car’s life. Same for every other item I raised. Like every car, not all vehicles will suffer the same issues. Time cost was mentioned in my reply. You have to drive quite gently for the first few seconds after the engine restarts. Plus it is not 1/2 a second delay in response for Toyota, Ford, Mazda, VW systems vs not using stop/stop start - it is more. PLUS the need to then drive slow.
@MGL83
Жыл бұрын
I work for one of German car makers, and I asked about this my colleagues engineers. They say it saves about 0.5l per 100km. The starter motor wear is not an issue, because when the system was introduced, the starter motor design was changed specifically for this reason, but most of all starter shouldn't be used much at all. Engine is stopped in a very precise point, so there's a cylinder with piston at position of full compression and fuel mist in, so just spark from the spark plug will start the engine. The fuel mist will settle over time, so this state can be kept only for limited time (~1 minute) but that is enough to handle a lot of the engine stops. Personally I appreciate the engineering, but I just find the feature annoying. Also, just so we're clear, I don't speak for the company.
@shaneduncan4952
Жыл бұрын
The far more important questions is what damage or accelerated wear does the stop start system cause? And does that replacement part defeat the fuel economy savings. Hint yes and yes.
@colinbolton993
Жыл бұрын
I have a 2006 Citroën C3R stop start. . It has the working software rear was missing from the original cars. It stops the engine with one cylinder 10% before TDC. then, when starting increases the mixture in that cylinder . It is silent and you can't feel it. The engine has to meet 21 requirements before stop starting is allowed. It uses the stop/start alternator to load the engine when cold to speed warming up. This occurs very quickly. It also uses loading the engine as initially slowing or maintaining speed downhill.
@fatfreddyscoat7564
Жыл бұрын
It’s not meant to save fuel, it’s meant to lower emissions.
@nathanross4036
Жыл бұрын
Saving fuel means lower emissions. Lower emissions mean using less fuel. Crazy how that works right?
@arnoldtownsend4568
Жыл бұрын
Driving a company VW golf about 50000 miles per year I tried this both on and off and it made no difference to fuel consumption. What it did do was require a very expensive heavy duty battery after about 2 years. The battery failed to even try to start and gave no previous warning of failure. A very costly {scrapping a fairly new heavy duty Lead Acid Battery} and useless sales gimmick. Also on the morning it failed to start it required a breakdown truck to take it to the garage.
@Bryan_drums
Жыл бұрын
No but they destroy engines
@priceless073
Жыл бұрын
real
@elenabob4953
Жыл бұрын
No, I'm in charge with tuning and sw. The only thing that is different is that you will have a reinforced started to deal with so many stop and starts. In addition to that, you usually have a package that is called energy smart management with a slightly different battery that will also retrieve some energy while braking.
@ChlyDoris
Жыл бұрын
Why cars use more when wet; It has to throw out/ push away quite a bit of water, so assuming you have a 215, that flattened has a surface „squat“ of 2cm , and a constant water of 4mm the front tires have to displace 0.344 liters every meter you drive; On the motorway that water gets thrown several meters high; lets say at least 4; because in a lorry you have spray, we halve it because(sertainly morethan half) is lower; means for every meter aprox every step,you drive you have to throw a beverage can of 330 ml 2m in the air, that is quite an effort…
@JorgeRodriguez-po7kx
10 ай бұрын
So good that I bought a Hyundai without knowing any of this but to my luck My Car didn't have it 😅😅😅 and If I'm gonna buy another Car would ask first If it got this function or not because is a deal breaker for me
@luckgrip252
Жыл бұрын
In my opinion stop start systems do save some fuel, but at a cost of starter motor wearing out quicker than it should. I myself programmed the stop start system in a way that I could turn it on if I ever wish to, but it's disabled by default.
@johngow8844
Жыл бұрын
I disabled mine as it was so annoying and terrible for the start motor / engine wear. Annoyingly had to use an OBD device to disable it as although there's a button, it would always default to on after a stop. There are stop start systems with an E-Torque system (mild hybrid) which have their own dedicated battery and wouldnt use the starter motor to re-start the engine and in those cases probably worth using. But for the miniscule amounts probably not.
@deyvi7781
Жыл бұрын
It is the biggest stupidity that has ever been introduced in a car, there are no savings, you can only ruin your engine, especially diesel! For example, you are driving on vacation or somewhere where you will burn more than 2000 kilometers and at the moment you feel like going to the toilet or want to take a break, stop the hot engine and suddenly turn off the engine, catastropheaaaaa! That's when the biggest failures occur, especially on gaskets, especially on turbines and that's why it never turns it on!
@thisnthat3530
Жыл бұрын
Tyre tread forms a linear pump. It takes energy to pump the water out from the road surface they're about to occupy, also some water sticks to the tyre and is thrown upwards behind the tyre, sapping energy. Worse at high speeds or when road surface is wetter, but the total amount of water moved is surprisingly large even when the road only seems a bit damp.
@timhancock6626
Жыл бұрын
I think most of you miss the point of stop start. It's not to save you money, it's to stop you turfing out pollutants when the car is stationary. I don't like S/S but it does make a difference to emissions in cities. That's why they were put on, so that manufacturers could meet emissions targets.
@rwscarlett2958
Жыл бұрын
how about the effects it has on the life of the starter over time?
@brunoais
Жыл бұрын
30:04: It's actually due to energy dissipated for the wheels to throw water away so they can touch the road. Throwing water (or shifting water) isn't free.
@mabeljoe4305
Жыл бұрын
Why Not to Buy a Car with Stop/Start Technology - Scotty Kilmer KZitem Channel kzitem.info/news/bejne/rW1rmGirbqlljXo Video Decsciption: Stop start system explained and why not to buy a car that has one. Why stop start technology can lower your car's engine and starter lifespan, car review with Scotty Kilmer. Do stop start systems really improve your gas mileage? How to disable the stop start system in your car. The pros and cons of owning a car with a stop start system. There are advantages to buying a car with stop start technology, but also a lot of downsides. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years.
@josephmarsh8235
Жыл бұрын
😂, I was thinking of sharing this to his channel in the comments too! I'm a massive fan of Scotty Kilmers KZitem channel too, and I've never used stop/start after watching his video years ago too 😂
@DrRyan82994
Жыл бұрын
Scotty says... the only good car ever made is a 1994 Toyota Corolla
@mcunha81
Жыл бұрын
It seems the start ,stop effects the digital read out more then anything,I still feel this is a gimmick. The real test would be doing the test , refilling then doing it again ,using start stop,then refilling and seeing the difference.
Пікірлер: 1,1 М.