• blender_iconE10 and E15 are blends of ethanol and gasoline—the number after the “E” indicates the percentage of ethanol.
  • As of 2011, EPA began allowing the use of E15 in model year 2001 and newer gasoline vehicles.2 Pumps dispensing E15 must be labeled (see example). The vehicle owner’s manual may indicate the manufacturer’s maximum recommended ethanol content.