The Walden Effect: Homesteading Year 4. Farming, simple living, permaculture, and invention.

Non-ethanol chainsaw fuel

chain sawI've been having some trouble with the chainsaw and was ready to take it in for a tune up. Anna mentioned how she read in the Nov/Dec 2008 issue of Countryside magazine that fuel with a 10 percent ethanol mix was not good for 2 stroke chainsaw engines. I checked at the gas station and sure enough it had a 10 percent mix of ethanol. It seems like most gas stations around here sell the ethanol enhanced fuel, but I got lucky and found one outside of Gate City on route 23 that advertised non-ethanol fuel.

Some folks will say it's not that important, but all I did was empty out the 10 percent ethanol fuel and mixed up some 2 cycle fuel with no ethanol and my problems went away. This guy suggests that the problem can be avoided by using the high octane gas, which tends to cancel out the ethanol effect. My chainsaw is of the older generation, and I'm going to keep ethanol away from it if that's what it tells me to do.



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ethanol free gas
You can also call around local airports to look for ethanol free gas. Planes that have been modified to run on automotive fuel also cannot tolerate ethanol. Generally 100LL (100 octane low lead) is the easiest to find at airports, but some have automotive ethanol free fuel.
Comment by Shannon mid-morning Wednesday, April 22nd, 2009
comment 2
That's very good to know! We'll have to check out local airports if our ethanol-free gas station switches over.
Comment by anna mid-morning Wednesday, April 22nd, 2009
ethanol free
Thanks for that bit of advice Mark. I believe you are talking about "Presleys" market, right? My friend John owns that place, and I always give him a hard time because his gas prices are usually a few cents higher than anywhere else in town. But since it is ethanol free, Ive come to realize, its worth paying a few cents extra. Many people also swear that ethanol free gasoline gets better miles per gallon.
Comment by Shawn Becker late Wednesday afternoon, April 22nd, 2009
comment 4
I'm not sure which gas station Mark went to, but I'm intrigued to hear that ethanol lowers gas mileage. I'll have to read up on that!
Comment by anna Thursday afternoon, April 23rd, 2009
Ethanol fuel
Ethanol doesn't burn like normal alcohol therefore causing a performance decrease in any engine. Everyone I spoke with that have flex fuel vehicles don't recommend using e85 unless you drive locally because of having such a decrease in performance especially when towing! Ethanol also absorbs water just an fyi which can lower the octane rating by as much as I think 5points which can make some cars and trucks knock due to the low rating so if e10 sits in ur saw dump it out and put new stuff in cause it'll absorb the moisture in the air. Oh yea ethanol is harder on engines for instance they recommend changing oil on cars and trucks that run e85 to change their oil every 2000miles prolly due to the fact it has less lubrication properties since it's an alcohol compared to normal gasoline. So as far as I'm concerned they can put ethanol where the sun don't shine and come up with something better that doesn't smell like rotten eggs when it burns!
Comment by Mike late Wednesday night, October 29th, 2009
comment 6
Good point! Thanks for that very useful information!
Comment by anna late Thursday afternoon, October 29th, 2009



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