[Fulltiming]

303 seems to get very good reviews from users and detailers. Goodyear (http://www.goodyearrvtires.com/faqs.aspx then click on Care) says they don't endorse any particular product but to stay away from anything that has petroleum products in it. Michelin (http://www.michelinman.com/tires-101/tir...ducts.page) expresses the same concern about putting any product on your tires that has petroleum products in it. Bridgestone/Firestone (http://www.trucktires.com/bridgestone/us...ochure.pdf) says that it doesn't hurt to leave tires dirty and that washing tires 'excessively' removes the protective compounds they put in the tires. They state: "Washing tires too often can remove protective compounds and result in premature aging. Avoid harsh cleaning agents, steam cleaning and tire dressings."