The best way to maintain a clean boat or RV is with regular washing with a boat wash , RV wash or a good car wash shampoo. Just like with car washes, you want a high lubricity boat or RV wash to protect the gel coat from scratches caused by loose dirt. On top of regular airborne contamination, boats have the added threat of algae and minerals in the water. They can attach to the hull and spot and stain it. Regular washing prevents the buildup of algae and minerals. RVs are giant magnets for dirt, bugs, and pollution because they're big and they have lots of flat surfaces where dirt can accumulate. Regular washing will keep your RV looking great. Choose from these high quality shampoos.