Flex Fuel (also known as E85) is a gasoline-ethanol blend containing anywhere from 51 to 83% ethanol, and can only be used in Flexible Fuel Vehicles (FFVs). At the dispenser flex fuel is clearly labeled “E85” and includes signage that cautions drivers to use this fuel only if they have a FFV vehicle. Check your owner’s manual to confirm whether you have a FFV vehicle that can run on Flex Fuel.
Learn more about Flex Fuel Vehicles on the EPA website.