How much oil is 50 to 1?

A 50 to 1 oil-to-fuel ratio means that for every 50 parts of fuel, you add 1 part of oil. To calculate this, you would use 2.6 ounces of oil for every gallon of fuel, or approximately 1.28 ounces of oil for every quart of fuel. This ratio is commonly used in two-stroke engines for proper lubrication.