E85 (or flex fuel) is a term that refers to high-level ethanol-gasoline blends containing 51%-83% ethanol, depending on geography and season (see Fuel Properties and E85 Specifications). It can be used in flexible fuel vehicles (FFVs), which are available from domestic and foreign automakers. Use the Vehicle Cost Calculator to look up FFV fuel economy, fuel costs, and greenhouse gas reductions.
Other than lower gas mileage, motorists driving FFVs will see little difference when using E85 versus gasoline. Depending on the actual ethanol content, E85 has less energy per gallon than gasoline to varying degrees (the impact on fuel economy lessens as the ethanol content decreases).
There are more than 2,700 public E85 stations in the United States that offer high-level ethanol blends to more than 17.4 million FFVs on U.S. roadways. As a result of the United States Department of Agriculture’s Biofuels Infrastructure Partnership, $210 million has been set aside for the installation of new ethanol infrastructure in 2016 to increase the availability of E15. High-level ethanol blends are available in more than 40 states, with a concentration of stations in the Midwest. Find E85 Fueling Station Locations near you.
There are additional regulations for stations selling blends above E10. For more information, visit the Codes, Standards, and Safety page.