The U.S. Environmental Protection Agency says gas stations can now sell gasoline blended with 15% ethanol for all cars built in 2001 or after. Right now, when you fill up in Michigan, your gasoline has 10% ethanol.
The EPA says E15 gasoline will help reduce our need for foreign oil. Ethanol is made from plants like corn. The EPA only tested the effects of E15 on emissions and catalytic converters.
But ethanol is corrosive. Patrick Kelly is with the American Petroleum Institute.