40:1
Twelve and a half ounces.
12.8 u.s. ounces
ratio is 16 ounces of oil per six gallons of fuel
50 to 1 ratio. 16 ounces to every 6 gallons
Hi .. the oil mix ratio for this motor will be 50 to 1 or 16 ounces one pint for every 6 gallons of gas.
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.
To determine how much oil to add to 20 gallons of gas at a 50:1 ratio, you would divide the number of gallons of gas by the ratio. For 20 gallons, you would calculate 20 gallons ÷ 50 = 0.4 gallons of oil. Since there are 128 ounces in a gallon, this is equivalent to 0.4 x 128 = 51.2 ounces of oil. Therefore, you should add approximately 51.2 ounces of oil to 20 gallons of gas.
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.
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.)
17.6 ounces of oil for 2.75 gallons of gas to get a 20:1 mix ratio
Like most outboards, it uses a 50:1 fuel to oil ratio. This is equal to about one pint per 6 gallons, or 2.6 ounces per gallon.
12.8 ounces.