Two-cycle engines burn oil mixed into the fuel. Enter your fuel and ratio to get the exact amount of oil.
How it works
Gallons × 128 fluid ounces ÷ the ratio gives ounces of oil.
Before you order
- Use the ratio on your engine or manual. Guessing one can damage it.
- Use fresh fuel, and only mix what you will burn within about a month.
- Use oil labeled for two-cycle air-cooled engines, and not automotive motor oil.
Common questions
How much oil is 50:1 in a gallon?
About 2.56 fluid ounces per gallon.
Is it bad to run too much oil?
Yes. Extra oil makes smoke and fouls the plug, while too little can seize the engine.