One model up from an IEL AA.![]()
Touche, or in the words of Homer-Dooh
One model up from an IEL AA.![]()
What is the shelf life of Echo, Stihl Ultra, Amsoil Saber?
Does synthetic motor for cars like Mobil have shelf life? I thought oil last a long long time!!!
Why they are limit in life? The additatives?
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50:1 is fine but if it make you feel better use 40:1.
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+1
The correct answer is yes
My jonsered cs2171 that I got last summer is supposed to run on a 50:1 mix. I've never had any two stroke that ran on such a lean mixture. Is the EPA behind these new reccomendations? I'd like to get several years out of this one, and I've been mixing my gas 40:1 to be sure that I do. I would not have a problem buying synthetic 50:1 oil if I thought it would be better for my engine than what I'm doing now. Any advise on this subject would be appreciated. Thanks!
Well. When I had bikes I either ran 32:1 in my CR250's, sometimes 40:1 if I felt I wouldnt be doing much wide open. In my KDX I always ran 40:1
I figure with a saw thats being run wide open all day 40:1 instead of 50:1 is more appropriate. I dont run stihl oil because its a waste of money =].
I usually run some kinda ok oil from an auto parts store. Rarely gas station oil.
Mind you, the more oil you add to the mix the leaner the saw will run.
IE if tuned using 50:1 it will actually run leaner on 32:1.
Reason being there is less gasoline per volume in the fuel... Stoich is 14.7/1 A/F with 50:1.. 2/100ths of the fuel and approximately 0.294% of the intake charge is mix oil. With 40:1 2.5/100ths of the fuel mix and 0.367% of the intake charge is oil. Its a slight difference that can be used to alter A/F ratios ever so slightly.. with fixed jet carbs it can make up a difference between jet sizes. Racers use very specific ratios to tune for stoichiometric A/F ratios & max power. The average saw user wants the A/F ration a little rich anyways because the saw will run cooler and longer.
Basicly, stoich might be different with premix than straight gas as well.
More of a topic for the hotsaws forum.
50 to 1 even if says 32 one gas can . carbon build up is harder on a saw than a little bit lean .
So what about bar oil......Gary?....anyone?.....hellooo
As far as bar oils go: use what you want, you will anyways, from old motor oil, frresh motor oil, Trany fluid, gear oil, Hytran oil, olive oil, etc, etc. Hell use that Warming KY jelly if it turns you on.
So what about bar oil......Gary?....anyone?.....hellooo
As far as bar oils go: use what you want, you will anyways, from old motor oil, frresh motor oil, Trany fluid, gear oil, Hytran oil, olive oil, etc, etc. Hell use that Warming KY jelly if it turns you on.
LoL...did you say frrresh motor oil....does that go through an extra step in processing than regular motor oil?![]()
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Actually I drink about two tubes of KY and pi$$ in the jug.....good enough??
:greenchainsaw:
still sucks but at least now I can get a laugh out of it...thanks
Another oil thread *yawn*
Have to agree here 100 %. It is a happy medium between 40/1 for milling & 50/1. With the oils on the market now providing better protection the thinking that you have to continue mixing at the days of old ratios is wrong for newer saws say 10 years old or newer. You can do it but once the saw is adjusted it will not produce as much horsepower in addition to loading up the bottom end bearings that will take on a varnished tinge . Old habits die hard.Look, mix it 45:1, everyone is happy, nobody's feelings get hurt.
Mark
If this is boring then don't read the thread. I think most people come here to ask a question, get informaiton and learn. In my opioion, whicn doesn't count for much, there are NO dum questions. The only dum thing to do if you have a question is not to ask it.
I drink to that![]()
I have been saying the exact same thing over and over. I did ask a lot of oil question before. People here cast me as stubborn, not listening. It was getting to the point that whenever I ask something related to oil, they start barking already!! I had been into big arguments!!!
I agree, This is a public forum, people should be able to come and asked openly. I even have people writing to me in private to encourage becaue they don't want to get all the criticism.
I think oil is very important, the forum should encourage the new people to ask questions. When I bought my first equipment, I have no idea about oil mix. I learned from here. When ever I see a thread like this, I would try to answer if I think I have something useful to offer. So keep asking and post your opinion, I will cheer you on!!!![]()
Hello Youngman. Good to hear from you. I don't know about most of you here, but to me a saw is quite an investment and properly maintaining it only adds to its life time. For every person here, for every brand and model of saw there will be different opinions what to use for an oil mix in these saws. My newest saw was made in 1982 a Poulan 3400 CAV that calls for a 16/1 mix using Poulan brand oil. I've gone to a 32/1 mix of Synthectic oil for that saw and have used her with no problems. I've readjusted the carb for that mix and she ran just fine. I then modded the muffler, readjusted the carb and she acts like a completely different saw. I'm some what old school. My brother bought a new Husqvarna 372XP, it calls for 50/1 mix. The dealer he bought the saw from said to go to 40/1 mix of either Husky or Stihl oils or any good oil that he trusted. I mixed up a batch of 32/1 Mobil 1, MX2T oil for him, adjusted the carb and he went to cutting like he stole the saw. After running about 5 gallons of 32/1 mix gas through her, he decided to go to a 40/1 mix. We readjusted the carb and have been running on 40/1 mix ever since, with absolutely no problems. He did run some 50/1 mix, but doesn't like it, cause he sees very little exhaust smoke. With the 32/1 mix you can see the smoke and you will get some unburned oil thorwen out the exhasut. with the 40/1 mix, he's satisfied, he sees a bit of oil when using the saw and it's not throwing oil all over the saw. We also modded the muffler on his saw and readjusted the carb. He simply loves to use that saw, with the way it is now set up. He's been using it for the last 3 years for his own wood supply and has had NO problems with the saw. He's carefull not to over rev the saw out of the wood, doesn't let it idle for long period of time and after a long hard cut or cutting on a hot day he will usually fast idle the saw for a few seconds before shutting her off to cool things down a bit if he feels she running warmer than usuall. Lean mixtures, from what ever cause, and too little oil are in my opinion the 2 biggest enemies that the saws have, along with operator ignorance or error. Best advice is to either follow MFG suggestion, make up your own mind, go with your own gut feelings, ask questions and keep everyone here on their toes. As said, this is an open forum, anyone can ask any queston they wish relating to saws and this is a good topic to keep open. I'm waiting to hear more about these so called 4 stroke hybrids that are coming out in various weedeaters and I suppose saws after awhile. Everyone take care. Be good, play safe and be carefull. Lewis.
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