I have a 90hp 1990 Force outboard. Just purchased and new again to the outboard world. How do I mix the gas and oil? Do I just both directly into the tank? There is a mixing bottle in the boat; is that what I use instead?
At any one of your local marinas they have plastic containers that tell you exactly how much oil to put in. Dump the oil directly into the tank first then gas and you're good to go. 50:1