Use 31 ounces of fuel with only 1 ounce of oil (or 62 ounces of fuel with 2 ounces of oil) see the pattern. If having problems, consult a math book/conversion chart.
Twelve and a half ounces.
For 12 gallons of fuel add 30.7 ounces of marine oil (almost a quart) For 24 galons of fuel add 62 ounce of marine oil (2 quarts) For 36 gallons of fuel add 92 ounces of marine oil (3 quarts)
That is 12.8 ounces of oil.
40:1
It is 2.56 ounces of oil to a gallon of gasoline.
A 50:1 ratio is 2.5 - 3 ounces of 2 cycle oil, per gallon of fuel. In larger measure, one pint of oil, to six gallons of fuel.
A 115hp Mercury outboard boat motor has a fuel to oil ratio of 50 to 1. This translates to 16 ounces of 2-cycle oil to every 6 gallons of fuel.
20 (twenty) ounces of oil. A quart is 32 ounces. 4 quarts per gallon = 20 quarts = 20 ounces.
12.8 u.s. ounces
32:1 four ounces per gallon
The ratio is 50:1. (There are 128 ounces in a gallon so for every gallon of fuel you will used approximately 2.56 ounces of oil. (128 x 6 gal = 768 oz, 768/50 = 15.36) so for 6 gallons of fuel used 1 pint (16 oz) of oil.)
50:1