Cleaning Your Boat
In addition to a good upkeep on your engine (such as regularly changing your marine engine oil), you also need to make sure your boat itself is clean. It may seem like a superficial process, but if you take care of your boat, it will take care of you.
Some cleaners on the market can actually damage the sealant on your boat. The phosphorous contained in many cleaning products is difficult to rinse from a surface. That residue builds up eventually causing the sealant to soften, which then results in oxidation. Strong cleaners can do the same thing. Use these products to clean your motors or when removing oil or heavy residue. Go sparingly then rinse immediately.