What is the fuel to oil ratio on the 2-Stroke engine?

For the 2-Stroke 66/80cc Angle Fire, 66/80cc Racing Series Stage 1 to 4, and 80/100cc engine kits, the correct fuel ratio is 40:1 which is 3.2 oz of oil to a gallon of gas. We recommend a synthetic blend or full synthetic 2-Stroke motor oil. For the 2-stroke gas, you can use the standard 87 gas at the gas station or even the 91, whichever you prefer, but normal gasoline will be okay. It’s best to use a quick mix bottle for accuracy (already has measurement markings needed for the oil).