E10 improves mileage on average

Motorists avoiding E10 thinking it gets fewer miles per gallon might change their minds based on an EPA study, "The Effect of Fuel on Emmissions of Vehicles over a Wide Range of Temperatures," Journal of the Air and Waste Management Association 43 (July 1998). The authors tested 11 vehicles and found that E10 delivered an average of 1.64% better mileage compared to ethanol-free gasoline. Some cars were much better, while a few models were a little worse on E10. -- Jeffrey Goettemoeller
Manitowoc Herald Times Reporter - Ethanol fueling nationwide debate:
by Kristopher Wann -- 2/19/2006
"MANITOWOC -- When Jim Kraemer needs to fill up his 1991 GMC Sonoma pickup after transporting car parts for Marv's Auto Sales & Service, he would rather use gasoline than E10, the 10 percent ethanol-blend fuel suitable for vehicles produced after 1980.
'I don't like to use ethanol because it's not good for the engine and I get less mileage from the fuel,' he said. "