I have a 1996 merc 15 hp they say 50:1 but I run at 40;1 a little more lube won't hurt it's worked ever year since 96!
50 : 1 is the correct fuel mixture
50;1
I have a 1999 Mercury 2stroke 5HP outboard and the owners manual states 50:1 Gas/Oil mixture.
A 4hp Mercury outboard requires a 50:1 fuel to 2 cycle oil mix.
the mixture is 50:1
50:1
50-1
50:1
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.
A 50hp Mercury outboard, requires a 50:1 fuel to 2 cycle oil ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
The 2.5 hp Mercury outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50:1