Some gasonline is mixed with 10% ethanol. Its generally higher octane gas (From Sunoco around here 94 Octane) which is perfectly fine. You won't be running E85 or anything like that. No cars are really Flex Fuel around here. Ethanol is the way of the future really say 10 years from now everything will be E85 and older cars will be converted pretty cheaply to run on it. You don't get as many miles thats true but at a 1/3 of the price eventually, who cares...
Hybrid Mode
