A 175hp Mercury outboard requires a 50:1 fuel to oil ratio.
2%
50:1 Oil to gas ratio
If manufactured after 1965, an 80 hp Mercury outboard requires a 50:1 fuel, to 2 cycle oil ratio.
2.5Oz per gallon of gas
My 2003 3.3hp outboard motor is 50:1 mixture.
50:1
mix 50:1
The 18 hp Mercury outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 1978 model, 9.8 hp Mercury outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50 to 1 oil and gas mixture
50 to 1