What is E85?

E85, also called flex fuel, is an ethanol-gasoline blend containing  51% to 83% ethanol, depending on geography and season—summer blends tend to have more ethanol while winter blends have less.4 E85 can be used in FFVs, which are specially designed to run on

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What is E15?

E10 and E15 are blends of ethanol and gasoline—the number after the “E” indicates the percentage of ethanol. As of 2011, EPA began allowing the use of E15 in model year 2001 and newer gasoline vehicles.2 Pumps dispensing E15 must be

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What is E10?

E10 and E15 are blends of ethanol and gasoline—the number after the “E” indicates the percentage of ethanol. Most of the gasoline sold in the U.S. contains up to 10% ethanol—the amount varies by region—and all auto manufacturers approve blends

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