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Old 09-30-2012, 09:12 PM
kawakx125 kawakx125 is offline
LawnSite Senior Member
 
Join Date: Apr 2012
Location: lees summit, mo
Posts: 945
ethanol can and has been proven to be harder on seals and stuff in fuel systems of vehicles. it can eat certain rubbers pretty quickly. newer ones are designed with this in mind but older engines can have problems related to it. it's pretty standard around here to have at least 10% ethanol. the other issue i have with ethanol is there is less energy per gallon than straight gasoline, so you need more ethanol to make the same power. this translates to lower fuel mileage. granted at 10% its not a huge difference but it's still there all the same.
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