Lawn Mower Fuel Type Guide: What Gas to Use (and What to Avoid)
Most gas push mowers and riding mowers run on regular unleaded gasoline — 87 octane — with no more than 10% ethanol (E10). Higher ethanol blends like E15 or E85 damage rubber fuel system components and void most mower warranties. This guide covers exactly which fuel to use, which to avoid, and how to protect …