Manufacturers make flex-fuel vehicles with modified internal combustion engines that use traditional gasoline and ethanol blends, such as E85. RELATED: Types of Gasoline Explained: Learn the Differences Can My Car Use Flex-Fuel? For example, E85 sold during colder months often contains lower levels of ethanol to produce the vapor pressure necessary for starting in cold temperatures. But E85 for FFVs uses a higher percentage of ethanol.Į85 is a gasoline-ethanol blend containing between 51% to 85% ethanol, depending on the season and geographic region of the distributor. Most of the gasoline sold in the United States contains some ethanol. Ethanol gets made from a collection of plant materials, including corn. What is Flex-Fuel?įlexible fuel is the general term for a renewable and domestically produced alternative fuel that is gasoline blended with ethanol. Read on to learn about flex-fuel and whether you can use E85 or other blended gas in your vehicle. In fact, even some owners of flex-fuel vehicles, or FFVs, have questions about gasoline-ethanol blends.

But many motorists do not know much about ethanol-blended gasoline labeled E85 at gas pumps.

Vehicles with the ability to run on flexible fuel started becoming popular in the 1990s, and manufacturers in turn began producing cars that can use the biofuel.

Ford flex type of gas