The fuel to oil ratio for Mercury outboards, 1965 and newer, is 50:1, one pint of 2 cycle oil to six gallons of fuel.
A 175hp Mercury outboard requires a 50:1 fuel to oil ratio.
50:1 Oil to gas ratio
50/1
2%
2.5Oz per gallon of gas
The 1977 model, 20 hp Mercury outboard, requires a 50:1 fuel to oil ratio.
If manufactured after 1965, an 80 hp Mercury outboard requires a 50:1 fuel, to 2 cycle oil ratio.
The gas to oil ratio is 50 to 1 50: 1 I have the same motor, good luck
the ratio is 50 to 1 50 parts gas to 1 part oil so 6 gallons of gas per 1 pint of oil
An 8hp Mercury would require a 50 : 1 ratio of fuel to oil, one pint of 2 cycle oil to six gallons of fuel.
50:1
50:1