How much oil do I mix with 11 gallons of gas to get a 50-1 mixture?

To achieve a 50:1 oil-to-gas mixture, you need 2.6 ounces of oil for every gallon of gas. For 11 gallons of gas, multiply 2.6 ounces by 11, which equals 28.6 ounces of oil. Since there are 128 ounces in a gallon, this is approximately 0.22 gallons of oil.