I know how long it takes to produce a video like that! Very informative buddy...
@DavesSmallEngines
3 жыл бұрын
Hey Steve! No kidding eh? Thanks for the kind words!!!
@MrSGL21
3 жыл бұрын
thanks for teaching me how to tune a chain saw.
@davidnoyes3373
3 жыл бұрын
Also chain is sharper on original cuts therefor working harder on second set. Also agree that carb mixture screws are a factor.
@Sensei948
3 жыл бұрын
@@DavesSmallEngines kzitem.info/news/bejne/06GlrK6rsKaTmHY jak to naprawić przepustnica nie otwiera się do końca.....
@jylbo
2 жыл бұрын
It's nice to know that Steve is here too =D
@scotgarland7526
2 жыл бұрын
I've logged professionally for over 30 years. I mix 40 to 1 and add 1 iz of marvel mystery oil per gallon of gas and ONLY NON ETHANOL gas. My saws cut 3 to 4 million feet a year with no issues. Good job on the video
@DavesSmallEngines
2 жыл бұрын
That’s pretty good evidence. What oil do you use?!
@WKR79
Жыл бұрын
@@DavesSmallEngines Would be very interesting to see your test done with Scot's mixture. Thanks for the very interesting video BTW!
@stevenkinnison8044
Жыл бұрын
I can’t find ethanol free gas in my area but I wish I could.
@Wolf-wf6yx
Жыл бұрын
Is the one ounce of Marvel additional to the 40:1 mix or part of it? 40:1 is 3.2 oz of oil to 1 gallon of gas. For one gallon did you add 3.2 oz of oil plus 1 oz of marvle making a total of 4.2 Oz per gallon of gas?
@scotgarland7526
Жыл бұрын
@@Wolf-wf6yx yes. I do my normal mix PLUS an ounce of marvel
@srankin8022
Жыл бұрын
You should retune your carburetor after changing to 25-1 ratio. You're putting more oil in and less gas so you have to richen the carb settings to get the same amount of gas into the cylinder. By not making the carb adjustments you are running the saw leaner which causes more heat everytime. If you make the proper carb adjustments you well gain a bit of power from the extra oil sealing the piston better. Great video! It certainly shows the need to retune after changing gas/oil ratios.
@Havensal1
6 ай бұрын
I was thinking the same thing.
@flagulantmichael
4 ай бұрын
if you change your carb mixture then your adding more gas. therefore negating the baseline. might as well just run 50:1 and be safe. no added benefit here.
@srankin8022
4 ай бұрын
@flagulantmichael If you increase the oil in your gas oil mixture, then you have less gas and more oil therfore the need for the carb adjustment in order to get the same amount of gas into the engine. You will use slightly more gas/oil mixture but the same amount of gas.
@jamiewarner9101
4 ай бұрын
@@flagulantmichaelthe added benefit is your actually getting enuff lubrication. He took it too far. 40:1 is perfect. Only reason for 50:1 is to meet epa regulations. Take two brand new saws. Run 1 50:1 and run one 40:1. I got a grand on the 40:1 lasting longer
@billjohnson5951
4 ай бұрын
@@jamiewarner9101 I'll take that bet!
@josephrich6014
3 жыл бұрын
I wanted to thank you, DonyBoy and Steve (Steve's Small Engine Saloon). Because of you guys, I was able to pick up and quickly diagnose and fix a Husky Rancher 55 for a total of $50. Loving my "new" saw. All it needed was a thorough cleaning to release a stuck break and fiddling with the coil to get spark back. Starts and runs great!
@DavesSmallEngines
3 жыл бұрын
Hey Joseph! I have had a couple 55’s…. Awesome saws! Glad to have been of assistance. Thanks for watching!!!
@toddscholze6168
2 жыл бұрын
I have a poulan 3400 from 1983 that I run. Manufacture recommends 16:1 ratio! That's what I always ran and never had a problem. Smoked during warm-up, but cleared during sawing. After about 35 yrs I took it apart to put in new rings and the piston and cylinder walls were in perfect shape. The cylinder is NOT chrome or nickasil plated either. Was no ridge on cylinder from ring wear. Most of its life I used Cenex two stroke oil.... my Dad was a manager at a Cenex location. I don't think more oil makes saw run hotter. If that was the case, my saw would have overheated. My saw ran cool. The carb was adjusted to the mixture it was running. Ran great. Dealer would always give me hard time. Wanted to sell me new saw every time I stopped in for new chain or bar. Told him I'd buy new saw when my poulan wore out. It's still going and he died waiting.
@DavesSmallEngines
2 жыл бұрын
Hey Todd! That’s great info. I wanted to show a video on the difference if the carb was not adjusted. To make up for the oil increase long term, I would want to make adjustments to the carb. Cheers!
@blixhuxley1055
2 жыл бұрын
Don't die waiting peeps. Moral of the story. Get your ass better...in all facets of life. You may smoke a little at first, but long with all your heart to run smooth.....chop that wood
@shredwardc656
2 жыл бұрын
The 25 to 1 would perform better if the jetting was correct to the ratio.
@shannonwhitaker9630
Жыл бұрын
I’ve got an old 3400 counter-vibe and it runs fine on 42.5 :1
@mateobrainardo4770
Жыл бұрын
Salesman “died waiting” for your 3400 to blow. Nice.
@GWAYGWAY1
Жыл бұрын
Biggest problem is going to be carbon on the piston and exhaust port, but the anti spark shield will block solid far faster with the 25:1.
@dgott7726
4 ай бұрын
My anti-spark shields fit nicely in the trash bin.
@easydoz1
3 ай бұрын
Don't think I've ever seen carbon build up on my equipment. But I like them richer than usual.
@gregtaylor8327
2 жыл бұрын
Ran all my Huskys on 50 to 1 mix. Still do. Never looked likeblowing one up. Used to log full time. 2 years out of a spark plug was common. Why smoke yourself out for no reason. Used to have folks try all kinds of things out. Saws were often running to rich and gutless. 50 to 1 is what Husky mauals say and its good enough for me. My old 372 loves it.
@danielsmith8659
4 ай бұрын
I grew up selling firewood , my dad ran an 028 and 2 029s. Early 80s models. He ran 50:1 til the end. They survived from the early 80s until the late 2000s….. never rebuilt. Keep the chain sharp, air filter clean. Run an appropriate sized bar … and it’s amazing…. The saws lasted 30 years. Matter of fact the first 10 years was tree service and pulp wooding, and transitioned to only 20 chord a year fire wood the last 10 year or so.
@steveperry3538
4 ай бұрын
Exactly right. Ran 50:1 for 15 years, 6 hours a day. Ran those saws until everything but the motor was plum wore out
@austindenotter19
2 жыл бұрын
Proper sharpening. 32 to 1 mixture. Original 372 Husqvarna. Usied logging felling large hardwood timber. Saw ran awesome for 20 plus years. Got run over by a log forwarder. Busted both cases. Pulled the crankshaft out put in a couple cases that I bought from a buddy. That was five years ago still running strong. Proper sharpening.
@brianellison3525
2 жыл бұрын
I remember the big debate over 16-1 vs 32-1. Lol My HomeLite runs best on 24-1. These newbies, lol
@ajw6715
2 жыл бұрын
The reason for the higher temps is do to the extra oil raising the compression. The reason it didn't have the same power is because it was running richer. The jets would have to be turned in a little on the richer mix to get the power up. Some thoughts from an old logger.
@Qwertyuiop-wg5xu
2 жыл бұрын
such an underrated comment, as well as maybe the chain got just a little duller, so the engine had to work just a tiny bit more, as well as it was just one run, so it was not the average of like 10 runs, so differences in user inputs could have also bee the cause, but I agree with you, it needed just a bit of tuning, but still,
@zzzgz5
2 жыл бұрын
Richer in Oil, Leaner in Fuel. The extra oil would certainly reduce power somewhat because there is less Fuel which is what provides the power. Additional carbon buildup over time also. I wouldn't call this experiment absolutely conclusive, you would have to more precisely control load with each cut as that is probably the biggest variable. The operator may feel like he's applying 'similar' load with each cut but a variety of things such as changes in the log dimensions over its length, changes in Grain and density, and etc. would result in less than wholly accurate tests. I don't fault Dave's attempt to test, he doesn't have a lab and equipment to control the variables and did the best anyone could do without the proper instrumentation. There was a time when 16:1 and 32:1 mix ratios were common. With modern lubricants, modern materials and modern methods that produce better manufacturing tolerances, we don't need that much oil today. In any case it makes sense that less fuel would result in higher temps, that's what happens when you introduce less fuel to one of these engines.
@ajw6715
2 жыл бұрын
@@Qwertyuiop-wg5xu You won't blow the engine up!
@ajw6715
2 жыл бұрын
@@Qwertyuiop-wg5xu I always add a little extra oil to my mix. and after 52 years logging I have never blew up a saw. My brother who used to log with me wouldn't add extra oil blew up a good many saws. Common sense is uncommon.
@Qwertyuiop-wg5xu
2 жыл бұрын
@@ajw6715 i kind of agree, really, like let it run a bit richer on oil rather than maybe running a bit leaner, even though it might get less strong, but still, you would tune you saw on the mix you have, lets say you are running a 40 to 1, you will tune it while it has 40to1 mixed in it, not you tune it with 50 to 1, then run it on 40to1, like, I am sure adding just a bit more oil will not be anywhere close to buying a new saw each few years, it definitely is better to be on the safer side, plus it is not as if you are damaging anything since you are still around 30 or 40 to 1, it is not as if you are going with 10 to 1 or something
@nickthorp1624
Жыл бұрын
good work I was initially surprised by the result :) a little late to the comments section here but i would say the higher temp is likely due to a leaning of the fuel ratio due to the extra oil. Also, too much oil will cause the needle roller bearings to "skip" or "skid" rather than rolling, this causes wear on your bearings. Oil technology and metal/machining quality also affect the oil ratios. Each saw make and model has its own recommended mixtures for a reason :) The pure lubrication aspect of the oil happens at around 100:1 then there is the cleaning/washing away of contaminants that needs a little more and finally there is a sealing/cushioning component to the oil and you end up at 50:1 - its also a very convenient ratio to mix. Originally Husqvarna stated that you needed Husqvarna oil at 50:1, other 2stroke oil at 33:1 and monoSAE30 oil at 25:1. Now, many years later the manual reads "air cooled 2stroke oil at 50:1", on all their saws. Many Chinese saws say 25:1 simply because the tolerances aren't as good and generally the oil quality is unregulated. It would be interesting to re do the test, re tuning and re plug the saw for the 25:1 and see what happens. Well laid our format - instant sub from me mate
@dbmail545
2 жыл бұрын
We ran 2-stroke racing bikes at all different oil mixtures back in the day. We jetted for the day. The main issue with running the castor bean oil we favored at 16:1 or thicker was fouling spark plugs when you throttled down. Man, this brings back memories.
@kevywilliams3304
Жыл бұрын
And you don’t own them today…. Hence .
@noclass2gun342
Жыл бұрын
gotta love that Klotz Benol... i actually prefer the supertechniplate, and its what i run in my saw now... you are right about one thing... castor bean oil definitely needs RPM to burn cleanly
@binderfan436
4 ай бұрын
@kevywilliams3304 Hence, your comment doesn't make a bit of sense.
@Bay0Wulf
Жыл бұрын
I think going from a 50:1 to a 25:1 is a pretty radical step. Using XP Series Husqvarna saws and 50:1 synthetic oil, I got damage over time (a lot of time but a $175 parts rebuilt …) I’ve changed to 40:1 and things seem to be much better
@JS-oy6nn
Жыл бұрын
Husky oil is some of the worst oil made. Stihl oil is right behind xp oil.
@brentflora8965
Жыл бұрын
Have had my share of operating both an XP 390 & 3120. Are you using .87 or .91 gas?
@buildingwithtrees2258
Жыл бұрын
Same, my top end is toast. Only 91 octane no ethanol in its lifetime.
@netromrep6325
Жыл бұрын
I agree with you.
@jeremiahfolger5407
Жыл бұрын
Same here, my dad and myself run 45:1 because we burnt up 2 saws before we made the switch and now running the 45:1 we haven't burnt one up
@jhans3278
3 жыл бұрын
Great job, Dave. As an engineer, I believe collecting data to support a claim is essential. Thank you for conducting the test and sharing this data with us.
@DavesSmallEngines
3 жыл бұрын
Hey there! I’m lucky enough to have an engineer as a father, and I’ve always been a big evidence guy myself. Myths and folk lore?! Prove it!!!
@purebrawn5208
3 жыл бұрын
I believe in collecting a claim to support data. Ever think of that?
@rocco5045
2 жыл бұрын
@@DavesSmallEngines HI, would be nice to measure RPM, load and no load. And then try to adjust the carb so you have same RPM in both scenarios with different mixtures. And then take the temperatures.
@wfks_forum
2 жыл бұрын
I run 25:1 and i tune them for 25:1 for 30+ years now, the oldest saws i have are 22 years old bought new together,thousants of hours,i used to make a living cuting and selling firewood,just my 2 cents
@whatnotzone6866
2 жыл бұрын
That was a great video! It was clearly obvious in the video that the saw lost power when using 25:1 mix. You could not only hear it in the sound of the engine, but visually it was noticeably slower cutting the logs.
@jeffboyd7780
2 жыл бұрын
It was running leaner at 25:1 which means less power and higher operating temperature. Carb needs to be tuned for each mixture to get a accurate test.
@trickster8635
Жыл бұрын
The amount of oil would HAVE to effect volatility of the fuel. It would be interesting to see the two mixtures run on a saw set up on a dynomometer and measure the difference in torque output. Great video all the same.
@jimbo5635
Жыл бұрын
The oil drops out in the crankcase. I read oan article on 2 stroke motors bikes. The got the best HP at 18 to 1
@deanmsimpson
Жыл бұрын
@@jimbo5635 I read an article saying the same thing. It may have been the same article.
@peterbrazier1886
10 ай бұрын
2 things to remember here ,the more oil the lower the octane rate of the mix and 2nd two stroke oil returns to its original viscosity when compressed so more oil than recommended is wasted
@gamewarden3006
3 жыл бұрын
Great test. Be interesting to see what the results would be if you richened up the H mixture screw to compensate for the 25:1 mix.
@DavesSmallEngines
3 жыл бұрын
It would be interesting for sure. I wanted to show what would happen if the same saw was used with the same settings. Tuning a chainsaw is beyond the scope of comfort for most folks. Thanks for watching, hope to see you back Brian!
@em4703
3 жыл бұрын
@@DavesSmallEngines Most saws come out with autotune/m-tronic from now on, so that won't be an issue in the future. Knowing to tune a carb is mandatory, and easy, I don't know why it's always expected of people not to tune, or going with a leaner oil mix is a fix. It isn't. You could buy a saw in a shop at 8000 elevation, you go to your sea level home, and the saw now runs lean without you doing nothing to your oil-gas mixture or whatever. I appreciate the test, but the difference between 25:1 and 50:1 is 2% oil vs 4% oil. That's a 2% difference, or 2% less gas. If the air temp is 6 degrees C colder than when you tuned the carb, that air is gonna be 2% denser, doing the same thing as going from 50:1 to 25:1 air mixture. It's just not that big of a deal in tuning, nobody has that fine of a ear when tuning so even the best at it just go slightly richer to be on the safe side and get back to cutting. It's not that big of an impact going from 50:1 to 25:1 as people think it is. Early morning to mid day temperature changes have a way bigger impact :P In regards to 25:1 feeling more sluggish? That's again the tune or just placebo. This was tested decades ago and there's a research paper on it, I'll have to look it up and edit it on here. Max power and compression is at 8:1 fuel-oil ratio or so, and power decreases from leaner ratios more and more due to worse ring seal. Optimal ratio percentage wise for better power without going too rich on oil was 32:1. Regarding the extra oil, just use a full ester synthetic oil like motul 800 off road or similar and you won't see any smoke even at 4:1 kzitem.info/news/bejne/soKNm397rJ53ZnY
@supay2929
2 жыл бұрын
@@em4703 the test in the video you linked is a test on a 4 cycle engine… whole different story
@stihlvarna
2 жыл бұрын
The carb tuning on that saw is terrible. Shouldn't take that long to start a 260 and it shouldn't be smoking at any ratio. This test is a bunch of BS.
@arthurbcccwright8726
2 жыл бұрын
The saw was started bone dry (without any fuel) before the 50:1 run. Then all the fuel was burned out before refueling with 25:1. In both cases I would expect a number of pulls would be needed to get fuel through the system.
@gerryplante2651
2 жыл бұрын
Great video! Informative data. Many excellent comments. I have heard people recommend using 40:1. (Better piston/cylinder lubrication). I have been tempted but reluctant and continued with 50:1. My two non expert thoughts. Factory engineers designed the saw for 50:1 having done testing and designing and though probably not a big deal, pollutes less which makes me feel better. I really enjoyed this video. Thanks for taking the time to do this.
@shannonwhitaker9630
Жыл бұрын
50:1 is an EPA mandated ratio
@harisyoung4110
Жыл бұрын
with good oil you'll be fine with 50:1, even on a 250 dirtbike engines we run 50:1 mix.. richer mix only lead to more carbon buildup.. i dont use stihl oil as it makes a lot of carbon buildup and loud piston ring sound..
@hugh007
Жыл бұрын
Don't know if a heavier mix is better or not, but nothing mandated by the EPA is to improve engine life.
@willpresnell81
Жыл бұрын
I'm not really into chainsaws but motorized bicycles, I've learned that there's a lot of similarities between the two so your information was very helpful, thank you.
@DavesSmallEngines
Жыл бұрын
That’s great Will! Cheers!!!
@joshuadulaney5559
6 ай бұрын
What did you decide 2 run. Im 40 1 craddle 2 grave!
@PrimitiveGuyStuff
10 ай бұрын
I ran a 72cc Chinese auger at 50:1 when they recommended 25:1. After less than 8 running hours, the engine gave out and the piston has groves in it. I just bought another one and will be running it as recommended, 25:1. It seems to reason that even though it may run at a bit higher temperature, the additional oil helps lube the working parts better than 50:1, making it last longer.
@treeguyable
2 жыл бұрын
Been mixing 6.4 oz oil, to 2. 3 gal of gas for 31 yrs. Never had a problem. I use any old 2 stroke oil I find by the gallon at walmart. Works fine.
@thecollectoronthecorner7061
2 жыл бұрын
Yep I use the Wal mart super tech and Murphy corn gas. 1/2 pint to every gallon of gas. One thing that really helps the older saws is to convert them to electronic ignition.
@orangeshaw2370
2 жыл бұрын
5.46 ounces API-TCW3 oil to 2.0 gallons gas/petrol for 15 years without a problem. Then one day used farmer's old barn 2TC oil & cost me a new piston & rings. STIHL/Husqvarna/Oleo Shell Nautilus two stroke oils cost far less when purchased in 5 litre containers.
@orangeshaw2370
2 жыл бұрын
Yes things have changed in the past 15 yrs, me too, so also add Lead (LRP replacement) additive of 1ml : Litre of gas/petrol.
@jeffreyhershey5754
2 жыл бұрын
I've always mixed my saw gas at 50•1never a problem and always use premium gas in my saws been using that mix since the late 80s
@gregbrassington2120
2 жыл бұрын
40:1 Is the sweet spot !
@DavesSmallEngines
2 жыл бұрын
I’m not sure, Donyboy73 says 45:1
@garrettstevensen2467
2 жыл бұрын
You are correct Greg. We went from 50:1 to 40:1, and we don't replace engines annually at our landscape company. At 50:1, we were tossing equipment out due to low compression. This is one of those issues that I tell people, but I don't push it on them - because they need to learn on their own. I spent so many years and so many thousands of dollars for our company buying new equipment - and this is a lesson that everyone should learn on their own. 50:1 is NOT ENOUGH oil to properly lubricate these engines, especially when wide open for long, sustained durations. 40:1 is the "sweet spot." A spark plug replacement is cheaper than an engine replacement. We remove all spark arrestor screens on all equipment, since concrete can't catch on fire. We enrichen all carbs by using chinese tools purchased from the internet. I will never debate this with anyone; We've been doing this for decades. If a worker changes the mixture from 40:1 to 50:1, he is terminated instantly.
@darrellpatenaude3825
4 ай бұрын
Run 40 to one in everything I own dirt bikes , saws etc
@t-works3643
3 ай бұрын
@@garrettstevensen2467Hi Garrett, what was that chinese tool you used for mixture setting?
@MrXcrt
Жыл бұрын
Been using 40:1 ratios on all my equipment, recently the stores have been out of that mixture ratio so I’ve gone to 50: 1 mix now for all my small engine needs. I just purchased a chainsaw on Amazon and it’s stated in the users manual that a mixture of 25:1 was recommended but I was using 50:1 on it, and it had my curiosity as to whether I was damaging my equipment. This video couldn’t have came at a more perfect time and answered my questions. What a great video you put together on the particulars of oil mixtures , well done ! thank you.
@BidenisPed0Peter
3 ай бұрын
If you use an oil that is rated JASO-FD on the bottle, you can run it 50-1 in any 2-stroke.
@sbeprecisionproducts6729
2 жыл бұрын
The Craftsman/Poulhan chainsaw I have requires 1:40. Newer saws seem to spec 1:50. It seems that the emissions regulations more than performance may have something to do with the new specs.
@carlatamanczyk3891
2 жыл бұрын
You guessed it.
@jbbolts
3 жыл бұрын
well now youve done it... there will obviously be no end to this lol
@dale_ch
Жыл бұрын
Nice comparison test Dave, thanks for taking the time to do it thoroughly 👍 I suspect with a cheap Chinese chainsaw that specifies 25:1 (suggesting an older style engine) that it probably wouldn't survive long on 40:1 or 50:1 ? - The Stihl's has a rock solid motor - no monkey metal inn those bad boys 💪
@noclass2gun342
Жыл бұрын
its mostly because of their outdated information, or possibly the lack of availability of high quality engineered 2 cycle mix, which contrary to popular belief is much different than conventional 30w oil. If you could find a manual for an older Stihl from the 70s-early 90s, you would find that Stihl recommended 25:1 with straight 30w oil. As lube manufacturers developed better and better 2 cycle oils, the recommended ratios got lighter. If you look at some of the most modern oils like Amsoil Sabre, they recommend 100:1 because of the extremely high flash point.
@bugoutbubba3912
7 ай бұрын
I have been running a Stihl 026 for 36 years now. The only repairs that I’ve ever made to this saw was replacement of the coil, clutch, pull cord and a few other typical wear parts. The saw has been cutting approximately 9-10 cords every year, plus all the misc land clearing that I’ve done. I have been running Castrol marine oil, 32/1 mix the entire time. The saw has very little carbon build up and almost no scoring of the piston or cylinder. I have replaced the spark plug very few times. How could anyone argue with this 36 year ongoing experiment? Just bought a Farm Boss for a grandson that will get the exact same mix. I’ll likely wear out before either saw.
@k.d.8924
4 ай бұрын
I hear ya, But I have a Husqvarna that I have run on the standard 50:1 ratio for 23 years with the same results. My thinking is that proper maintenance and tuning have a greater effect than fuel particulars.
@rydplrs71
3 ай бұрын
The ms291 will clog with 32:1. 40:1 with a quality oil that isn’t Stihl ultra will probably be ok although it will be lean unless you break the tabs off the carb to really adjust it richer. Even the stihl original oil would be better provided the exhaust screen is removed.
@rydplrs71
3 ай бұрын
@@k.d.8924my jd 50v is about 45 years old, my 346xp is is 27, my ms290 is 15? My ms 400 is 2 years old. 40-50:1 in every one for life except the jd that started 32-40:1 for a decade and now gets my mix. I used jd oil, or castroil then evenrude, and finally amsoil Sabre or echo red armor oil for the last 20 years with occasional Polaris synthetic snowmobile oil thrown in because it’s what I have on the shelf when needing mixed gas. I still like running the 50v whenever I can, the 346 only replaces it when a brake is a good idea. The 290 was my father’s and only gets used so it doesn’t sit. The 50v was also his I got it when he got the 290. The ms 400 is trying to replace everything but when I can do it with a couple pound lighter saw the 50v and 346 still have a home. I’ve only replaced fuel and oil lines, filters and recoil ropes on any of them. They used to do 4-5 cords of fire wood a year. Now they just deal with 4-5 cords a year cut just small enough to burn the brush, have some campfires and give away the rest, so 4-6ft lengths if it’s not to big a diameter for someone to load it and take it away.
@thisisyourcaptainspeaking2259
2 жыл бұрын
I recommend mixing to manufacturer recommendation, especially considering newer saws have features such as autotune. Aside from that, I've run 32:1 premix using ONLY fresh pump gas and carb tune using the tried and true 4-stroking method for decades and haven't encountered any issues. Still running saws built in the 70's era.
@SteelCowboy
2 жыл бұрын
Agreed I run 32:1 in all saws from 70’s all the way up to new saws, zero issues. 1000’s of cords of wood lol, -50° F to 100° F always tuned and sharpened of course.
@shannonwhitaker9630
Жыл бұрын
Fresh Ethanol poison gas lol ?
@pls822
Жыл бұрын
With decades of experience on working with engines the safest and best bet is to always follow the engines recommendations and never the claims of these premix formulas or two stroke oil providers that claim that their gas rich formulas is good for all, those engines are built with materials and clearances and tested with the mix that they recommend as is their warranty. Sincerely, Paulie T.
@pls822
Жыл бұрын
I would also like to add that the only times that I personally will not follow the engines mix recommendations is if they recommend gas mixtures as rich as 50:1and I always use the best proven two stroke oils. Sincerely Paulie T.
@thisisyourcaptainspeaking2259
Жыл бұрын
@@shannonwhitaker9630 Yes the 10% stuff. ONLY fresh and freshly mixed. It goes sour fairly quickly, gets sketchy. Even fresh 10% ethanol gas is hard on fuel lines and carb diaphragms, stick with ethanol free if you don't want to deal with that.
@L.J.Thayler8371
2 жыл бұрын
one of my coworker uses a 30.1 fuel&oil mixture, for years. (stihl engine oil) but yes the recommended ratio is 1/50.
@TheLawnmowerLady
3 жыл бұрын
Awesome explanation Dave! So many don't think about the lean condition created with extra oil in the mix. Lube is great, but it's not the entire story: fuel cools the top end too! edit: after reading most of the comments here, seems a lot of folks miss the point that this video is good info for the average DIY, homeowner, etc.: They just heard something on the internet about more oil is better, but don't really understand the need to re-tune the carb, which they likely don't really know how to do. Pros already know this.
@DavesSmallEngines
3 жыл бұрын
Hey mower lady! Thanks for the kind comments. There’s a lot of folks that know more than everyone on the Internet. I’m okay with it - I wanted to do a test for the average user. I agree, most folks don’t know how to tune a carb. Thanks for stopping in!
@swingbelly
2 жыл бұрын
Lady Lawnmover. Always on target with analysis and advice!
@billjohnson5951
4 ай бұрын
Thank you for demonstrating a head to head test of the oil mix debate. I have 50+ years experience with 2 stroke engines starting with the old 20:1 SAE 30 mixtures up through the 50:1 modern oil mixtures. Many people have difficulty understanding why less is best.
@mikecubes1642
2 жыл бұрын
i have run saws for 20 years with 20:1 mixed gas and never had a problem not even dirty plugs. they tell you to run lean oil mixes so you get less pollution and thats all. i had snowmobiles that blew up on 50:1 mix and i have seen old arctic cats run for 30 years because they used 20:1. drain half the oil out of your car and see how it works or mix half your cars engine oil with kerosene and see how it works. a neighbor of mine blew up a new stihl saw within 1 year and he ran 50:1. he was a logger so it got used a lot but one year isnt very long. I have mixed my gas with 40 weight engine oil at 20:1 when I was out of 2 cycle oil and it worked fine. anybody that says use less is a fool.
@Dntgveafck2701
4 ай бұрын
I think people should understand that most of these oils burn at low temperatures so 50.1 isn't much protection at high rpm unless U use like Motul 800 road racing which burns at 252 Celcius (50.1 this oil is same results 16.1 with thin oil
@martinklacansky3537
3 ай бұрын
@@Dntgveafck2701 exactly. with stihl oil, one of the worst on planet earth 1/50 or 1/30 is very little help. that why service is full of broken tools...... use motul 1/50 and u have no pro cca 10 years . people care too much about s.t.u.p.i.d reasons and they miss basics
@n085fs
4 ай бұрын
I do random tinkering. (I've fixed VCRs, Hoverboards, chainsaws, lawnmowers, reel mowers, PS3s, vacuum cleaners, home plumbing, home electrical (120V & 240V), my motorcycle was a 1980 Honda CX500D that I bought for $200 because the owner said he couldn't make it run. It had a broken wire preventing turning 12V into kV for spark. That was it. It ran great and I got my M rating with it.) A guy I was talking with found out I do random tinkering and asked me if I could look at his quad (but not the glutes). Anyway, he was told that his 2-cycle bike wasn't oiling properly, so he was told to just mix oil with the fuel and he did that and the bike stopped running and the two of them couldn't get it fired up again. So I said I'll take a look at it, and he dropped it off. I had a guess that the oiler was oiling, and by mixing oil in with the fuel AND having the oiler still connected, I had a hunch that the crankshaft literally filled with oil. So, what I did: I emptied the fuel tank. I disconnected the oiler tube from the engine block and determined that oil at least got to that point. I emptied the oil tank. I removed the spark plug. I hung the bike up with a winch to a tree, to turn the engine upside down to let the oil drain out of the engine, and drain it did. It was seriously pooled oil in the crankcase. I let the bike back down onto its own wheels. I cleaned the carb with compressed air after ensuring it needed no parts replaced. I reconnected the oiler tube. I filled the oil tank with 2-cycle oil. I filled the gas tank with regular 87 Octane. I reinstalled the spark plug. Bike fired right up and smoked a bit as it cooked off the last of the liquid oil in the engine. I ran it around the yard for ~30 minutes. All seemed well, I sent him video of it working and he came and picked it up. I told him to hold off on thanking me until he trialed it for a solid weekend. The following week he thanked me, it worked great. I watch videos like this because I hate sitcoms and "regularly scheduled programming". "But, how are you able to see emergency messages?" A one-time payment of $80 buys a tv antenna that gives free tv for years if I want to watch it, but youtube literally covers everything nowadays.
@marcelcanuck
3 жыл бұрын
iv'e been saying this all along , oil burns hotter then fuel , also the more oil you use the more carbon buildup you get which will cause scoring , thank you Dave
@DavesSmallEngines
3 жыл бұрын
Awesome Michel!!!
@marcelcanuck
3 жыл бұрын
@@DavesSmallEngines i'm thinking the apprentice might have taught the teacher a little something here , lol , even Steve's small engine disagreed with this idea 👍
@DavesSmallEngines
3 жыл бұрын
@@marcelcanuck he did? Jeeze - I didn’t see that video!
@marcelcanuck
3 жыл бұрын
@@DavesSmallEngines a few months ago live show with Donny ,not a big deal . i've learned quit a few things from his channel as well plus the guy is a hoot , great guy
@dustyfarmer
Жыл бұрын
If oil burned faster & hotter than fuel you'd have no lubrication & a seized chainsaw.
@C.Winter
6 ай бұрын
40:1 Premium Mineral Oil ( WITH API-TC/JASO-FB RATING ) with a Premium 98 Octane Fuel. Perfect for bigger saws optimal performance and reliability, I also use a mixture of either Husqvarna or Stihl Bar & chain oil with a Diesel SAE 40 engine oil mixed together ( 50/50 for colder conditions and 75/25 for average temperatures, on hot days I’ll run a pure bar and chain oil ) this is all just my personal preference based off of my experience not only felling trees but working as a OPE Specialist in the past. Though if your just a homeowner doing annual maintenance around your property always listen to your husqvarna or stihl dealer if you know nothing about cars you refer to the owners manual not billy on the internet for what oil and how much to put in (PLEASE DONT USE ETHANOL FUEL IT EATS YOUR FUEL LINES AND RUBBER COMPONENTS!)
@mikewrenchin1735
11 ай бұрын
You see, the MAJOR FLAW in your test is that you did not re-tune your carburetor for the new mix ratio. If you are running more oil you are displacing fuel and causing a slightly lean burn. You just need to re-tune your carb a bit richer to get that extra fuel back into the a/f ratio and the saw will run just as cool and have more lubrication. If the saw has limiter locks they may need to be removed to run rich enough with more oil then the EPA mandated 50:1. I've heard that the M-tronic and Autotune saws have no problem adjusting for the extra oil if the proper warmup procedure is performed.
@afellowinnewengland6142
10 ай бұрын
That wasn't the point of the video. He was trying to see what happens when you DON'T make changes. Additionally, most people don't have the experience to properly adjust and tune a saw.
@ChumpyChicken2
9 ай бұрын
@@afellowinnewengland6142then in this case he should have at least spoken about this. Context matters.
@afellowinnewengland6142
9 ай бұрын
Well maybe you’ll get a refund. How much did this video cost you to watch? I know when I watch a video on KZitem I expect the highest academic rigor, peer reviewed papers and state of the art test methodology.
@ChumpyChicken2
9 ай бұрын
@@afellowinnewengland6142 listen to the whining little fan boy that can’t handle any criticism. Your definitely a millennial.
@christopherkidd3401
Ай бұрын
I was wondering the same regarding how Mtronic handled the change or if it demands 50:1.
@brianellison3525
2 жыл бұрын
Have you done small incremental steps while reading the plug? That will tell you a lot more about how an engine is running than temp ever will. I raced dirt bikes for years, and have lived out in the woods all my life. At 40-1 my HomeLite will seize. It like about 28-1. My Echo likes 40-1. Just sayin, your saw will tell you what it wants, and they are not all alike
@darrellashby8802
3 жыл бұрын
Nice scientific video, I know people who use 32:1 and there saws just don’t have the pull. I personally run 40:1 in my saws
@DavesSmallEngines
2 жыл бұрын
Have you tried 45:1?
@darrellashby8802
2 жыл бұрын
@@DavesSmallEngines no I haven’t, I’ll give it shot on next gallon I mix
@shannonwhitaker9630
Жыл бұрын
Use 42.5 : 1 and decarbon every once in a while.
@claytonlemieux4090
2 жыл бұрын
always go for the most oil mixture because I have 3 chain saws, two trimers, or weed whackers. a 2-cycle small tiller. and a snow thrower so I don't mix for each
@mlindsay527
2 жыл бұрын
Less power, longer run time, higher temp. Check your cut times on the video. Try it again with a retune. 25:1 is mighty rich. The 4 stroke guys know oil contamination of gasoline reduces power. A two stroke will run better and better up to 100:1, just at the expense of longevity. 32:1 seems to be the sweet spot for me.
@srankin8022
4 ай бұрын
Actually, when tuned properly, the more oil will give you more power. It's been proven in two stroke motocross testing. A 32:1 mixture is about perfect for a chainsaw but it will require a carb re-tune to get best performance and to assure you don't get damage from running to lean.
@philrab
2 жыл бұрын
Just thinking out loud, there’s one variable you might have missed. Increasing oil in the mixture decreases gas. Unless you tweaked the jet settings on the carbs, wouldn’t that lean your A/F mixture out? And leaner mixtures do raise combustion temps and exhaust temps.
@thisisyourcaptainspeaking2259
2 жыл бұрын
Actually, if you measure exhaust temps, they drop when detonation begins to occur. So, I'm not personally sold on this parameter for developing a tune. I have noticed as many will testify, a two-stroke tends to make most power right before it seizes (oil film failure). This is why I place high value in the 4-stroking method for carb tuning. Think of it as "dancing on the head of a pin" in the sense that when detonation begins to occur, the conditions for oil film failure are also occuring. Detonation is often difficult to detect when it's occuring, it's much more evident by the way the engine runs. Ever noticed when those last few drops of fuel from an empty tank are being used as the saw is running out of fuel, the engine feels most powerful just before it runs out and falls on it's face? It just danced off the head of the pin and you felt it happen.
@MrSprintcat
Жыл бұрын
@@thisisyourcaptainspeaking2259 right before my leaf blower runs out of fuel I can hear the engine pinging every time. And I know I'm low on fuel
@thisisyourcaptainspeaking2259
Жыл бұрын
@@MrSprintcat That's right, it's running lean at that point. Maybe you know the old saying, a 2-stoke makes it's most power right before it lean-seizes. This is because the piston overheats when the mixture is too lean. Detonation occurs (often cannot hear detonation taking place, sounds like a pinging noise), piston overheats. Stay on the fat side, don't adjust the carburetor mixture screws too lean, avoid detonation. Detonation occurs when the fuel stops burning prematurely, such as low octane (low octane fuel burns quickly), insufficient fuel, or ignition timing is too far advanced. I adjust my 2-stroke carburetor as fat as I can, where it still makes good power. Occasionally this causes premature plug fouling and in that case I switch to next higher heat range plug. This kinda depends on the factory ignition timing and spark plug choice. Often, the factory timing is conservative and the plug chosen is a hair cold, to avoid pre-ignition (preignition destroys a 2-stroke almost immediately, pre-ignition and detonation aren't the same phenomenon) Too much cylinder heat (such as a red hot plug electrode) can ignite the fuel prior to the ignition event. Extremely damaging! Some people go so far as to optimize ignition timing, ie: the pro motocross and watercraft guys, race saw builders.
@markatkinson9963
3 жыл бұрын
Maybe if you tune the carb for the fuel mixture it may run the same temps. You may be putting the saw under load without it being run at optimum efficiency, therefor, it struggles more and runs hotter. I am skeptical to a degree how scientific this is.
@DavesSmallEngines
3 жыл бұрын
Hey Mark! Good points. I’m glad you’re skeptical - that’s what this is all about. This test shows what happens when you run 50:1 and 25:1 in the same saw with no adjustments. I did not make any carb adjustments.
@toddscholze6168
2 жыл бұрын
I agree. Carb adjustment would have been another interesting test. Guarantee results would change. Very interesting test though.
@fredscheerle7592
2 жыл бұрын
Or at least do same test but start with 25/1 Then 50/1
@stihlvarna
2 жыл бұрын
That saws cutting appallingly bad. It woukd run cooler with a properly sharpened chain.
@mareksumguy1887
Жыл бұрын
@@DavesSmallEngines it’s jetted for 50:1. So of course it will run too lean at 25:1. It will make more power and last longer at 25:1 if it’s jetted accordingly.
@ajpsawmill4314
Жыл бұрын
I run all my saws, old and new at 32:1, never had a problem for 40 years
@henerker
3 жыл бұрын
That was an awesome test, Dave. Your attention to detail and accuracy are commendable. Nice job! I learned a great deal from your test. Thanks!
@DavesSmallEngines
3 жыл бұрын
Hey! Thank you so much!!!
@Tachsman
Жыл бұрын
My 1996 Stihl Farm Boss instructions say to run 50:1 Stihl 2 cycle oil, but to run 25:1 with all other 2 cycle oil since this oil does not have as much wear protection (at least in 1996). Since 1996, i have used 50:1 Orange Bottled Stihl 2 cycle oil, premium gas, and no ethanol without problems.
@patrickquirk-qz8ri
3 ай бұрын
Ran50/1 in my 1973 Evinrude, never a problem.
@sawman209
2 жыл бұрын
I may add a few drops of extra oil but for my Stihl I just use the motomix. If I don't know what the ratio is, I add a little extra like 40:1 just to be safe
@shannonwhitaker9630
Жыл бұрын
Try 42:5:1, even better
@satwatchers
4 ай бұрын
GREAT video!!! Thank you for putting this together and forever settling the argument! Might I add, after I mistakenly mixed my fuel too rich and cutting down 14 aspen trees, my Stihl saw would not start the next day. I took saw apart and found the spark arrestor screen on muffler totally clogged. Because of rich fuel mix. There was so much soot at cylinder to muffler connection too. FYI
@johnclarke6647
Жыл бұрын
I agree, which is why I run 50:1. Anytime you increase the amount of oil in the gas you end up with a leaner mix because the mixed gas has less gas per volume of mixed gas with the higher oil concentrations of two cycle oil. Lean means hot and your tests prove it. The key is to use a good two cycle oil and premium, non ethanol gas, plus a good stabilizer. I use Stihl Ultra at 50:1 in everything.
@callummacleod1921
Жыл бұрын
Or tune your saw to run on your intended oil ratio.
@rreexx
Жыл бұрын
The best answer! :D @@callummacleod1921
@marekwieckowski7038
2 жыл бұрын
Good video Sir, I am not a Tree surgeon but a Home user accross the pond, and I run all my chain saws on 50:1. Stihl 08s, McCulloch 130, Husky 455 rancher and a small 120. And stimmers, hedge cutter, post hole borer etc and no problems.
@paulrhodes5883
3 жыл бұрын
Thank you for another amazing video Dave! I sure do appreciate all you do to make these videos for us. Have a wonderful week.
@DavesSmallEngines
3 жыл бұрын
Hey Paul! Thanks so much for the kind words. Take care!
@Arfonfree
4 ай бұрын
Great data points. I have older engines that have 25:1 or 32:1 mixtures recommended. I suspect that a good part of the reason is that the 2-stroke oils were not as good in the "good" old days. One test I would like to figure out how to do is some equivalent of the tests that can be done on used 4-stroke engine oil, where it can be analyzed for wear markers like dissolved iron. Pretty hard to do with a total loss system, though.
@nashguy207
3 жыл бұрын
Great video and information Dave. As the old saying goes more is not always better and you proved it in this video!
@DavesSmallEngines
3 жыл бұрын
Thanks Nash!!!
@jeffkenyon7084
2 жыл бұрын
Nicely done wait 50 to 1 I've always done 32 to 1 did something change in the last 20 years and I use any 2 cycle oil I can get at any gas station usually the cheapest my pore 2 strokes
@DavesSmallEngines
2 жыл бұрын
Yes, oils are better now!
@darrellhazy1743
2 жыл бұрын
Thank you for doing these test I would have never known
@brettlaukaitis3740
2 жыл бұрын
You also effectively changed the air fuel ratio with the 25 to 1 so basically you change the carb adjustment when you changed to the 25 to 1 my guess is you can get the benefits of running more oil in your fuel by manipulating the temperature of the plug you use and adjust the carburetor so benefits of 25 to 1 or 40 to 1 but the engine will run at the same temperature
@johndoe3johndoe382
Жыл бұрын
I always use Stihl hp ultra with non ethanol 100% gas. I have my own ritual. First I pour about 2" of fuel in the jug, then I add all the oil. I mix, then fill the gas to appropriate level, then mix more. Lastly, I take the empty oil bottle, pour a shot of gas in it from the jug, shake that little bottle and pour that remaining bit of oil in the jug. I do this to make sure I get every bit of oil out of that bottle. If you don't, there's always always good tablespoon worth of oil left over in the bottle, maybe that's a bit OCD.
@dans_Learning_Curve
3 жыл бұрын
Great test! Right up there with Project Farm! Test suggestion. Test starting fluid to see if it really destroys a two stroke engine.
@DavesSmallEngines
3 жыл бұрын
Funny you say that Dan! It’s already in the works! Stay tuned!
@hondoh5720
4 ай бұрын
Well done. Answered a thought I’d had. I’ve stayed with mfg instructions (50:1) on my Echos. They get stolen or destroyed before wearing out.
@KeithPaszkowski
Жыл бұрын
The carburetor moves the same volume of fuel mixture regardless of the mix ratio. Therefore, the lower gasoline content in the 25:1 accounts for the performance decrease when compared to the 50:1 mix. You can hear the difference in the video. Years ago 16:1 was a common ratio that I ran in my saws of the day. With the advent of improved lubricating oils, synthetics in particular, there is no reason to run such rich in lubrication mixtures. I even run my old saws (Homelites, McCullochs) at 40:1 now, with no problems to report. Exhaust ports and rings seem cleaner too. Good video illustration of an important point.
@jimfitzgibbon5492
Жыл бұрын
No not true that carb runs the same air fuel mix. When you add more oil you raise Viscosity (Thickens mixture) so you must adjust carb richer. Just a fact.
@thecollectoronthecorner7061
2 жыл бұрын
Im still using 1960s homelites with corn gas (ethanol) and Super tech oil mixed 1/2 pint to every gallon of gas. 50 plus years old and still going strong. I like blue smoke.
@DavesSmallEngines
2 жыл бұрын
That’s awesome!
@thecollectoronthecorner7061
2 жыл бұрын
@@DavesSmallEngines I am still running the 16 to1 mix. I have a 64 Xl12 that has never had cyl or piston ring work. and another 54CC 101 saw. A older Zip. A 68 CC lombard, A 58 CC super XL a 925 and a 550. My wife Thinks Im nuts carrying 7 saws to go get firewood. What I do is run a tank of gas thu a saw. and let it run completly dry. Then grab another and do the same thing. and keep going. I usually only run the bigger saws on very large diameter trees. I have stack mufflers on most and the others the mufflers have been gutted, My Father bought a new Xl12 in 64 and I got to use it when I was 13. What ruins saws is leaving gas in them that gets stale. and failure to keep the saws cylinder and air flow clean and they overheat. any saw that boils fuel is running too hot. you also have to properly adjust the carb for the fuel mix you are using. When folks tell me how terrible bad Etahanol fuel is. I ask why car engines today last 200000 and 300000 miles or more running on it. When back in the 60,s if a car engine made it to 100,000 miles it was something. Most where worn out and nurning oil by 70,000 miles. and the leaded gas fouled the spark plugs they had to be cleaned or replaced every 10,000 miles. My wifes car has over 300,000 miles and had new plugs one time at 200,000 miles.
@300mag83
2 жыл бұрын
It seemed weaker to me just watching with 25:1 also carbon build up I always just roll with 50:1. I’ve been running the same saw for years and it performs perfectly everytime. I cut a lot of fire wood for a home gamer I only burn wood no electric or gas heat at all..
@lagoonrd4173
2 жыл бұрын
Same here ... I’ve switched to amsoil saber in 2017 and notice way cleaner and more lubed parts during tear down
@thisisyourcaptainspeaking2259
2 жыл бұрын
@@lagoonrd4173 Amsoil is great stuff, all of their products are top-notch! I've been using Bombardier full syn XPS-2 for about 20 years now, 1 gallon jugs of the best I've ever run. I've never run Amsoil myself but most of my friends do and we've torch-tested it in their garage and the comparison between amsoil and some other decent stuff, the decent stuff lit off and made a mess while the amsoil just smoked a little.
@robertmies2109
3 ай бұрын
Not an endorsement for anything but for 25 years I’ve been using Opti 2 (a one mix) for all my equipment. My 52 year old chainsaw was 16:1, other equipment was 50:1 40:1 and 25:1 and I was tired of having 4 cans of old mixed fuel around. Now 1 can, no ill effects on the old saw. In fact I used it last week and other than beating my arms and shoulders up it ran perfectly. That really amazes me, 1 ratio.
@ShaneKelley-h6o
2 жыл бұрын
I'd be interested to see the test reran with the carb adjustment like it should be
@devlinsemmler8236
2 жыл бұрын
Why not just run 50:1 like it was designed for?
@jamesstewart9970
2 жыл бұрын
@@devlinsemmler8236 because in 2003 the epa decided to mandate that all small 2 stroke engines could only run 50:1 mix, and had nothing to do with what’s actually better for the saw mechanically speaking in preserving it from mechanical wear. When my 395xp came out in 1993 it was recommended by husqvarna to run it at either 32 or 40:1 mix, same exact saw is still being produced today with absolutely no mechanical changes yet if you read the manual for a new one it will state that 50:1 is recommended, not because husqvarna really wants you to run it at 50:1 it’s because the epa is forcing husqvarna to tell you to run it at 50:1, I’ve run mine at 32:1 it’s entire life and you can still see the original hone marks in the cylinder and it still runs like it did when it was new, and yes, it smokes like a freight train just like god intended.
@lawrencefranck9417
2 жыл бұрын
Honda did test years ago. Two strokes make more power with the most oil up to plug fouling. But there are down sides. The ratio the manufacture suggest is at WOT. 50:1 is plenty for the average user. Id suggest the synthetic premix fuel in a can. At least every couple of tank full. It cleans the carb, rings and exhaust. My equipment has never run better.
@DavesSmallEngines
2 жыл бұрын
Do you mean the Aspen fuel!? This is good info!!!
@andrewbuthmann2939
2 жыл бұрын
Well that was a good test ..I have always thought that one should mix the oil and gas to the manufacturer specs..my old homelites run on 16/1
@thecollectoronthecorner7061
2 жыл бұрын
me too. I just use the ethanol gas we buy at Murphy. I once tried two gallons of ethanol free gas. I couldnt tell any difference other than it cost more. Running any engine to lean will eventually damage it. They used to lean out the high jet on the 923 Homelites and get 11,000 RPM and burn the piston. So when the 925 came out it had a walbro carb with a fixed high speed jet. you could adjust the high speed jet and it never did anything.
@silver1fangs
2 жыл бұрын
@@thecollectoronthecorner7061 ethanol collects water and doesnt play nice with old rubber
@thecollectoronthecorner7061
2 жыл бұрын
@@silver1fangs Yes it is detremental to old rubber. its good that it absorbs water. Used to be when it got cold in the winter folks vehicles the gas lines would freeze at the lowest point. All gas tanks will have condensation and get water in them, Even if you keep them full. I buy my ethanol gas at Murphy. And mix a quart of super tech with 4 gallons of gas. and I actually add a pint of water. shake it up really good. I let that settle for a day and siphon out a gallon as needed being careful not to get close to the bottom. The last half gallon I pour into my old tractor that has a settlement bulb. I can see the blue colored gas and the clear water and ethanol mix. and when that settlement bulb gets almost full I take it off and dump it out. It works for me. Now its possible when getting Ethanol free gas you can get water. When those big tanks are low or just filled because the water settles to the bottom. Or the filling agitates it.
@silver1fangs
2 жыл бұрын
@@thecollectoronthecorner7061 By adding water your taking the ethanol out of the fuel. Ethanol bonds to water better than fuel.
@thecollectoronthecorner7061
2 жыл бұрын
@@silver1fangs Im well aware of that. If you think about it those storage tanks at the gas stations are getting water added. Any place where cold air and warm air meet condensation forms. So that tank that has ethanol free is getting water added without any corn alcohol to absorb it. It might not be as good a fuel as the Ethanol fuel treated the way I prefer to do it? Eny road it cost me less money. And ive been doing that for a couple decades without any fuel problems. You cant let fuel set in any engine for very long before it turns to varnish.
@shantyshitter3163
Жыл бұрын
I always run my mix rich on oil and have a few saws I've been running for 50 yrs plus with zero engine issues. Normal wear and tear are not a factor.
@trail457
6 ай бұрын
I run everyting 20:1 with carb adjusted for that mix.Never had a problem with piston or cylinder. Saw is 30years old and never taken apart.
@johnarnold3696
3 ай бұрын
Have been running 2 strokes for years. Have experimented with different oil mix ratios and there is less wear at 20:1 than 50:1. In a motocross bike did run 20:1 in a bike that came from the factory drooling black goo from silencer pipe. Observers would say oh, you are running too much oil. But decreasing amount of oil does nothing to decrease the black oil emission. The problem was air to fuel mixture. Just changing jetting and regulating the amount of fuel to air provided the pipe to burn a dry light gray. The mx bikes have a much more adjustable carburetor allowing for precise adjusment in 3 areas, low, medium and top end rpm's. Same principle for chain saws with only low and high adjustment.
@cmotto.1
2 ай бұрын
Thanks Dave, im glad you did this test. I've always wondered about that ratio. I will stick to 50/1 like my saw asks for...
@getitdone361
2 жыл бұрын
I have always ran my 2 strokes alittle rich on oil not twice as rich but add a extra half Oz to the mix each time nothing crazy but I've had the same weedeater for the last 21 years 100 percent trouble free so imma continue what I'm doing lol
@michaelbayerl1683
2 жыл бұрын
As you said in your intro, more oil means leaner burn, so you need to change the carburetor tune. So, even though you did a nice, quantifiable test, your basic premise was off. It would be much better to see this test done with properly tuned carbs for each fuel:oil mixture. Or, likewise in a modern saw with automatic electronically tuned carb like a Stihl M-tronic or Husqvarna AutoTune.
@charleschapman2428
4 ай бұрын
I purchased a calibrated 1 gallon measuring container just to mix my gas and oil to the exact proportions and no guessing. Once I have my mix ready I transfer it to my gas can. After paying 500 dollars for a backpack blower I wasn't taking any chances with a wrong mix. A lot of people use those small one gallon gas cans and don't realize that they're usually more than one gallon. Just a FYI, depending on where your machine was built, most likely at sea level. A carburetor adjustment might really help because of your altitude.
@chiphill4856
Жыл бұрын
FWIW I have a Stihl blower 20 years old and has been run without oil probably 10 or twelve times. Still runs like a champ!
@johnc.gillespie295
4 ай бұрын
Wow!
@HiLineTree
4 ай бұрын
😆🐿️
@chiphill4856
4 ай бұрын
My wife thinks 50:1 oil is optional! lol 😂
@SW-lu9cu
3 жыл бұрын
Very informative video Dave ! Great presentation as well. I always try to run a 45:1 ratio.
@DavesSmallEngines
3 жыл бұрын
I’ve been told by @donyboy73 that is the sweet spot!
@alexmatthews2332
2 жыл бұрын
40-45:1 Lucas has always been good for me!
@emanuelroth7960
2 жыл бұрын
This is what I do with my Stihl. Not because I know much about engines (I don't) but simply because it always "felt" like a better idea. Happy my gut feeling SEEMS to be correct.
@shannonwhitaker9630
Жыл бұрын
Nope the sweet spot is 42.5 : 1
@ronanderson1816
Жыл бұрын
Thank you! Please consider trying the test with Red Armor 50/1 and Amzoil Sabre 100/1.
@africantwin173
2 жыл бұрын
I like 40:1 in all my saws. Motul 800 offroad 2-stroke oil or Castrol a747. Stihl 2stroke oil is made by Castrol. Its their cheapest Power RS oil.
@mymusicaccount1456
Жыл бұрын
I was told by a very old Maine mechanic that 50:1 was the standard set in place by companies due to EPA regs. That's (one) reason Johnson outboards built in the 40's and 50's are still common out on the lakes and brand new motors fail after 10 years. The old motors ran on 16 to 40:1 depending on the year and model.
@drdr9452
2 жыл бұрын
You keep doin what your doin and I’ll keep mixing my oil 20:1 and using my 21 year old cub cadet weed eater and 12 year old stihl saws that have a immaculate piston and cylinder yea they have a little extra carbon on the piston and it blows a little smoke
@DavesSmallEngines
2 жыл бұрын
Sounds good Dr!
@rawbacon
Жыл бұрын
I was reading comments on another video while I was listening to this one and noticed all the sudden the saw sounded smoother, i came back here and you were cutting the big log with the 25-to-1, may have had less power and ran hotter but it sounded smoother.
@SuperMuenchow
9 ай бұрын
I repair& rebuild chainsaws and all the saws I get in for repair are dead because of ( not enough oil ) from day one, and I go back to day one ( 1932 ) all 2 cycle engines ran on a ratio of 16 to 1, gas oil mix , 8oz. oil to 1 gal ( reg gas ). All companies called for the same ratio. With this ratio the engines would last forever ( almost ) . What I use and recommend is a ratio of 6oz. oil to 1 gal. gas ( reg. gas) 8oz. is a little rich , but this is what i recommend for the big saw's. You cannot build obsolesce in a 2cycle engine but run them with not enough oil , and they will die, and this is what it's all about , you can take this info to the bank.
@brandonoglesby8498
Жыл бұрын
25:1 long term would leave excess carbon deposits on piston head and cylinder eventually causing problems. Due to loss of rpm causing engine to work harder to cut wood and less fuel efficiency. A rep at a licensed stihl dealer told me that all stihl products could run fine on a 80:1 mix short term with no problems. 2strokes are designed to run at higher rpm full throttle at all times under stress n cutting that’s how they’re going to perform n cut at their best. Half throttle bc it’s softer wood or whatever the reason also leaves more carbon buildup.
@fourbyfourer
2 жыл бұрын
WoW, this was very interesting and very informative. Thanks for all your hard work in making this video.
@johndoe43
Жыл бұрын
Good job. I have poulan saws and I think they recommend 32 to 1. So far I've cut a lot of wood and they run great. Not a pro but both saws have been through a lot of use.
@pls822
Жыл бұрын
stick to the recommendations of your engine, Paulie T.
@johndoe43
Жыл бұрын
@@pls822 so far I think I have and yes I agree. In my case I know nothing so go by the book. Thank you good advice
@reminoel483
2 жыл бұрын
I run 32:1 full Syntec oil, and adjust my A/F mixture for max power. I gum up more plugs than my friend but my engines always last long even if if run them hard until it runs ouf of gas.
@fasteddie389
2 жыл бұрын
At 25: 1 ratio the engine runs leaner (and hotter) as there's less fuel in the mixture. I wonder what the outcome could have been if you adjusted the air-fuel valve to account for the thicker mixture.
@blackbandedfireworks2741
2 жыл бұрын
Can't please EVERYONE, 50:1, 45:1, 40:1, 32:1, 20:1, 16:1. Someone will always says something about this or that. You can't please everyone for sure. I found your test on the 50:1 & 25:1 on temperature very interesting. I work on small engines all the time. I like the test & even learned something which for me is the goal. Each day when I get out of bed, if I can learn something that's great. keep the videos coming. I very much enjoy them. I appreciate the time & effort that you put into making the videos to educate people. Great work friend!!
@DavesSmallEngines
2 жыл бұрын
Hey Black Banded!!! Thanks so much for the kind words. I’ve been taking some time off but with posts and comments like this it sparks my motivation! Cheers!!!
@Gideon_Judges6
Жыл бұрын
I was watching not in fullscreen and missed the jump cut edit around 3:15 where he had already put the fuel cap back on and about fell out of the chair when he flipped the saw thinking he had dumped out all the fuel. I think we've all been there, fuel or oil, at least once. 😆
@todaylets2583
Жыл бұрын
Back in the day when some of my friends were racing two stroke bike the most power they could find was mixing with the most oil you could get away with up until fowling. A bike mag did the test on a dyno and found the same thing.
@wayne-oo
4 ай бұрын
Well done !
@86dieselman
3 ай бұрын
Been running two strokes for 40 years. There’s a big difference between brands, not just what specification they conform to but how much oil is maintained in the crank, how much carbon builds up, whether the oil burns or leaves the combustion chamber as an oil. Sadly some of the more expensive oils leave more carbon in the combustion chamber and in my experience damage caused by excessive carbon is a common cause of piston and cylinder damage.
@Redbull661
Жыл бұрын
in my testing I've found that smaller saws seem to require less oil (eg. MS361 had best cut times and temps with 45:1) and bigger saws required more (eg. MS661 had best cut times and temps with 32-36:1) But over all for most 2 stroke oils the safe ratio is 40:1. (thicker oils probably better off at 45:1) thinner oils which make up the most options = 32-40:1)
@Redbull661
Жыл бұрын
nice test btw!
@DirtRoadLanding
3 жыл бұрын
45:1, case closed 😎♥️🪓🪵🪓♥️
@DavesSmallEngines
3 жыл бұрын
I think that may be the answer!!!
@mdumbrell
Жыл бұрын
Excellent information. Thank you for taking the time to produce this.
@MechanicShananigans
2 жыл бұрын
Fuel cools, oil lubricates. Simple as that, no need to run 25:1 since oils have come a long way over the years. Great video Dave!
@Eternalfight87
2 жыл бұрын
What do you think of upjetting to make up for the fuel displacement if you choose to run extra oil ?
@alanreynolds2125
3 жыл бұрын
Hi Dave good video but you need to tune to the same RPM's with each fuel!
@DavesSmallEngines
3 жыл бұрын
Hey Alan - I could do that, but I wanted to see what would happen if a regular person believe that more oil is better. The results speak for themselves!
@curtchase3730
Жыл бұрын
Cool video. Good tests. I like the way his saw sounded. That 4 cycle sound under no load conditions is what I strive for when adjusting the mixture. Just an occasional poppity pop is fine. I never run my saws wide open without actually cutting wood. I adjust the high speed jet by trial and error. I'll start cutting a log and listen to it. If it has that "miss" sound, I back off, lean the mixture a tweek, and do it again. I strive for that intermittent miss sound when into a cut. The idle is can be touchy too. A balance of the idle stop adjustment and low speed mixture. I adjust for that poppity pop sound and RPM just to the point where the clutch almost starts to catch the chain. I just use 40:1 ratio.
@davidturner6509
Жыл бұрын
I’ve heard some say to use the ratio recommended by the oil manufacturer rather than the engine manufacturer…I had an EZGo golf car several years ago with a Robin engine. It used a 128:1 ratio when using EZGo oil, so 1 oz of oil per gallon of gas, and still had a little smoke. The dealer told me if I used any other oil the mix would have to be a lower ratio.
@originaloldpop8405
5 ай бұрын
glad I found your very well done test, heat is the killer of all combustion engines. Thank you for the time and effort you put into this test. I add Marvel to a everything that uses gas, also goes great with waffles, pancakes, hot dogs........
@larspersson185
Жыл бұрын
Thanks for a good test. it´s always nice to kill superstition. 50:1 (2%) oilmix have been perfect for my chainsaws for years.
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