If you're just talking about the engine oil, it's basically the same as a car except easier because the remote oil filter is a lot easier to get to. Personally with warm engine I just pull the drain plug on the stern and run the oil drain tube out the drain hole then over the side of the wake plate and into a bucket. 15w-40 is recommended and I won't get into the brand name oil wars, but FWIW I use Rotella.