How do you mix 40 to 1 gas mix?

To mix a 40:1 gas ratio, you'll need 40 parts gasoline to 1 part two-stroke oil. For example, if you use 1 gallon (128 ounces) of gasoline, you would add 3.2 ounces of two-stroke oil (128 ÷ 40 = 3.2). Mix thoroughly in a clean container before using it in your two-stroke engine. Always double-check the manufacturer's recommendations for your specific equipment.