Fuel Specifications/Alcohol In Fuel

All engines are designed to use unleaded fuel only. Unleaded fuel must be used for proper emission control system operation. It's use will also minimize spark plug fouling and extend engine oil life. Using leaded fuel can damage the emission control system and could result in loss of emission warranty coverage. The fuel should meet specification ASTM D4814 for the U.S. or CGSB 3.5 M87 for Canada. All engines are designed to use unleaded fuel with a minimum U(R+M)/2e (pump) octane number of 87, where; R=research octane number, and M=motor octane number.

ETHANOL
You may use fuel containing ethanol (ethyl) or grain alcohol providing that there is no more than 10 percent ethanol alcohol by volume.


METHANOL
You may use fuel containing methanol (methyl) or wood alcohol providing that there is no more than 5 percent methanol by volume.


Methyl Tertiary-Butyl Ether (MTBE) You may use fuel containing Methyl Tertiary-Butyl Ether (MTBE) providing there is no more than 15 percent MTBE by volume.