YORK COUNTY, Pa. - Part of the backlash against ethanol can be seen at Hake€™s gasoline station in York County, Pa., as motorists drive from miles away to fill up on pure gasoline, Fox News reports. "I get 20.1 miles to the gallon, in-town driving. I used to get 13," said Sue Cannon, who comes from 20 miles away to buy pure gasoline.

Some studies suggest that non-ethanol gasoline provides vehicles with 2% to 10% better gasoline mileage than ethanol fuel. Finding straight gasoline can be a challenge, though, since more than 95% of gasoline retailers sell E10.

Ethanol has been mixed in with gasoline for 30 years now, according to Bob Dinneen, CEO of the Renewable Fuels Association. "Ethanol is an American-made product. €¦We are lowering gasoline prices here, as opposed to a pure gasoline that is lining the pockets of regimes in parts of the world that don€™t like us very much."

With the Environmental Protection Agency€™s (EPA) approval of E15, the debate over ethanol continues as many gasoline retailers have refused to sell the higher ethanol blend. A new study indicates many cars and light trucks on the road today will not be able to function with E15.

"Ethanol attracts water, and that can result in corrosion in the system," said Rayola Dougher with the American Petroleum Institute (API). "We're hitting what they're calling a blend wall, where you're required to use ever greater volumes of ethanol in the gas distribution system but it goes beyond what the cars are being designed for. And this is particularly an issue with E15."

API has sued the agency to make the EPA conduct more research before E15 hits the streets in a few weeks.