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E85 Fleet Toolkit

E85 Fuel

Photo of a Marathon fueling station price sign. Gasoline and E85 prices are listed on the sign.

Driven by environmental, economic, and energy security concerns, the availability and use of E85 is growing nationally. E85 is composed of 85 percent ethyl alcohol (ethanol) and just 15 percent petroleum. E85 is designed for use in flexible fuel vehicles, referred to as "FFVs." According to the National Renewable Energy Lab, there are an estimated 6.8 million light-duty flexible fuel vehicles (FFVs) in the United States. These are operated by private citizens as well as business and government fleets. FFVs may fuel with either E85 and/or gasoline interchangeably. Most FFVs are still fueled with gasoline, but the availability of E85 and FFVs is expected to increase significantly in the next few years, providing more opportunities for using E85. To learn more about E85 and how it can be used as a fuel, go to the following links: