What kind of oil do I use
SAE 30 in the summer and SAE 10w30 in the winter. I highly recommend you use 100% synthetic oil in this air cooled engine.
50:1
My 5hp MTD recommends 5-30 oil.
50to1
The 1998 model, 5 hp Mariner outboard requires a 50:1 ratio, three ounces of 2 cycle oil, to one gallon of fuel.
Rimula will raise oil pressure and lower hp by 5%
5-20 oil
SAE 30 weight 100% synthetic oil.
50-1
oil ratio is 1% Pierre
In moderate temperatures, as in a lawnmower used in summer, most will use straight 30W oil.