Ethanol is a renewable fuel made from corn and various other plant materials collectively known as “biomass”. The use of ethanol is widespread, with more than 95 percent of U.S. gasoline containing ethanol in a low-level blend to oxygenate the fuel and reduce air pollution. Ethanol is also available as E85, a high-level ethanol blend containing 51 percent to 83 percent ethanol, depending on geography and season.
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