Engines are complicated things. For mechanics, it’s like second nature to figure out what oil is right for your engine, and doesn’t take much to figure out why one is more beneficial than the next. For those who are not so trained in the art of maintaining mechanics, it can be overwhelming to even decipher which oil is made for which vehicle.
If you have a mercury engine, knowing the right fuel to oil ratio is one of the most important pieces of information. You should have 50 parts of mercury engine oil to 1 part of gas. This will lengthen the life of your motor and ensure it runs more smoothly. Make sure to also have regular tune-ups twice a year when your boat is being used regularly.