When you are out on the water, you depend heavily on the marine engine that you have. Without it, you don't have the means to move, which can prove to be extremely complicated. A Caterpillar commercial marine engine has a great reputation for being reliable. Following tips on how to maintain an engine so that it is always in working condition will make it easier for you to spend time out on the water without having to worry about whether your engine will operate properly or not.