Prime Line 7-06620 Universal Multi-Mix 2-Cycle Oil with Fuel Stabilizer, 50:1 Mix Ratio 2.6 oz. Bottle 1 Bottle to 1 Gallon of Gasoline Yields a 50:1 Mix Contains a Fuel Stabilizer to Protect the Fuel Mix Against Varnish and Gum For Up To 6 Months After Mixing