Anyone that goes boating on a regular basis should know the basics of boat maintenance. For major problems, you’re still probably going to want to take the boat to a mechanic or another kind of specialist. However, with basic boat maintenance like putting in the oil, you should have some idea of how to do that yourself.
For starters, you have to know which oil is appropriate for your boat, which is usually decided based on the type of engine that your boat has. For my boat, I make sure that it’s filled up with Mercury Optimax oil whenever I’m doing maintenance on it. This helps to ensure that my boat is working the best it can.