E85 is a fuel suitable for “flex-fuel motor vehicles.” It is actually made up of 85% ethanol and 15% gasoline. E85 pumps are Plainly labeled at gas stations and generally have yellow nozzles. gasoline, mixture of unstable, flammable liquid hydrocarbons derived from petroleum and used as fuel for internal-combustion engines. https://garrettctixl.bloggazza.com/26227237/gasoline-meaning-fundamentals-explained