What are the most common blends of ethanol?
A. Ethanol is most often blended at a 10% rate, which is widely available and covered under warranty by every automobile manufacturer that sells vehicles in the United States for every make and model of automobile. The second blending rate that is growing in popularity and usage is E85 (85% ethanol, 15% unleaded gasoline). It can be used in flexible fuel vehicles (FFVs), which are made by DaimlerChrysler, Ford, General Motors, Mazda, Mercury, Isuzu and Mercedes.