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Re: Now I am getting confused....about ethanol
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Posted by Jon Hagen on April 17, 2006 at 11:41:18 from (69.26.29.111):
In Reply to: Now I am getting confused....about ethanol posted by Bill46 on April 17, 2006 at 10:05:18:
Here are the facts directly from the Briggs & Stratton site. Copy/paste.
B&S allows the use of oxygenate blended gasoline where the oxygenate content is up to 10% ethanol (gasohol) or up to 15% MTBE (Methyl tertiary butyl ether) by volume. However, ethanol blended gasoline can attract moisture which leads to separation and formation of acids during storage. Acidic gasoline can damage the fuel system of an engine while in storage. B&S strongly recommends removing ethanol-blended fuels from engine during storage.
Use of gasoline containing higher than the EPA approved limits, for volume percentage of ethanol more than 10%, or MTBE more than 15%, may cause engine damage and will void engine warranty.
Use of the following oxygenates may cause engine damage and will void engine warranty:
Such Alcohols include: MeOH (Methanol), IPA (Isopropanol), TBA (T-Butanol).
Such Ethers include: TAME Tertiary amyl methyl ether, ETBE – Ethyl tertiary butyl ether, As you can see,B&S has no problem with 10% ETHANOL as long as you do not leave it in for long term storage in humid conditions.
The do have a problem with METHANOL and some of the other more corrosive alcohol products,but not with ETHANOL. I also have used 10% ETHANOL blended gasoline in small and large 2 and 4 cycle engines from new to 50 years old with no problem for the last 20 years.
The fact is that in some cases,the 10% ETHANOL blend fuel is the only thing that is trouble free in certain machines. My 88 Dodge Caravan needs at least 1 tank in 4 of Ethanol blend fuel or it has starting/rough idle problems. My cousins 730 JD diesel with gasoline fueled pony engine,used to have terrible fuel system sludging problems with reformulated gas. It seemed that the heat from the big diesel would cause a bad reaction with unleaded regular in that little quart gasoline tank for the pony engine.It often took a month to use up that quart of gas,and the tank and carb looked like they had a layer of pond scum in them. He had constant problems with clogged fuel hose and carb needle/jets. Since switching to 10% ethanol blend fuel(3 years) he has had no more pony engine fuel problems. It seems to work equally well for small engines that see long winter storage,like mowers,pumps and grain auger engines,maybe in part because we have low humidity and do not see any condensation of moisture into ethanol blend fuel. It (10% ethanol blend) seems to stabilize fuel in storage,so we do not see gummed up fuel systems after months of storage.
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