1993 Chevrolet Lumina Owner's Manual - Page 239

Finish Care Occasional waxing or mild polishing of your Chevrolet may be necessary to remove residue from paint finish. the You can get GM approved cleaning products from your dealer. (Seethe Index under Appearance Care.) Your Chevrolet has a "basecoat/ clearcoat" paint finish. The clearcoat gives more depthand gloss to the colored basecoat. Aluminum Wheels(IF so E Q u w m j Your aluminum wheels have a protective coating similar thepainted to surface of your Chevrolet. Don't use strong soaps, chemicals, chrome polish, on or other abrasive cleaners them because you could damage this coating. After rinsing thoroughly, a wax be may applied. White Sidewall Tires Your Chevrolet dealer a GM White has Sidewall Tire Cleaner. You can use a stiff brush withit. Weatherstrips These are places where glass or metal meets rubber. Silicone grease there will make them last longer, seal better, and not squeak. Apply silicone grease with a clean cloth at least every six months. If you have aluminum wheels, don't usean automatic vehicle wash that has hard silicon carbide cleaning brushes. These brushes can takeoff the protective coatin 237 .