You can buy 2-cycle oil already pre-measured for 1 gallon of gasoline. However, if you buy the larger container of 2-cycle oil to save money, you need 3.2 ounces of oil to one gallon of gasoline for a 40:1 mixture.
The ratio is 40:1 which come to 3.2oz of oil per gallon of gasoline.
There is 128 oz in a liquid gallon so to achieve a 40 to 1 ratio you would add approximately 3.2 oz of 2 cycle oil to one gallon of gasoline.
go to the john deere official site,50:1 if you use there oil it"s all there
40:1
3.2 oz 2-cycle oil to 1 gallon gasoline
990ml 10w 40 semi
That is 40 parts gasoline to 1 part oil.
40 parts gasoline one part two cycle oil
40:1 means 40 parts gasoline to 1 part oil. So 40 OZ. of gas to 1 OZ. oil. If you wish to mix one gallon of gas, 128 OZ, you would add 3 OZ of 30 weight non-detergent oil (30wt ND), also sold (with green dye added, at a premium price) as "two-stroke oil."
On a car, 40 liters.
Every 40 ounces of gasoline add 1 ounce of oil for a 40 to 1 mix. You do the math.
Depending on what engine, Deisel or Gas, There are different API standards to go by (CF-4 for deisels & SL for gasoline). The Deisel Volkswagon Jetta calls for a 5W-40 CF-4 synthetic oil, and the gasoline engines call for a 5W-30 SL synthetic oil. Volkswagon recommends the use of Castrol 5W-40 SL Full Syntheticin the gasoline as well.