RedMax Fuel Recommendations

RedMax is a maker of commercial grade outdoor equipment such as chainsaws, string trimmers, blowers, etc. In their warranty statement they say that gasoline containing up to 10% ethanol is acceptable.

Only use gasolines which contain 89 octane or Higher. Gasohol which contains a maximum 10% ethanol (grain alcohol) or 15% MTBE (methyl/tertiary/butyl/ether) is also approved.

Source : RedMax Warranty Statement