When I got a Mercury Optimax engine I knew that I would have to use a specific type of oil if I really wanted it to perform as optimally as I wanted it to. I wanted to be able to keep my motor running perfectly by getting the oil that was right for it so that the motor would run efficiently and produce less exhaust. I have always hated boat exhaust so this was a key selling point for me.
In order to make it simple for my motor to run the way that it was meant to, I have to take the time to find the right oil for it each time it needs new oil. I use Optimax oil since this is the type of oil that is actually made for the outboard that I bought. The oil ensures that my boat always produces only minimal exhaust which makes me happy.