What fuel does my outboard engine use?

Question

hey everyone, just wnat to thank everyone for help me repair my outboard motor, its a mercury thunderbolt from the late 70's,

all i need to know now is what kind of gas it uses , Leaded or UnLeaded and the best gas to oil ratio that wont harm the engine,

thanx again for all the help,

lu

Answer 1

Just plain old unleaded

Answer 2

There is no leaded fuel> So use mid range> 50 to 1 oil

tcw3 oil

Answer 3

87 octane gasoline. If it has an oil reservoir, fill that with TCW3 certified oil.   If it doesn't have an oil reservoir, add oil to the fuel in a 50:1 fuel to oil ratio.  1 pint oil per six gallons of gas. (1/3 cup per gallon).