1998 Pontiac Firebird Owner's Manual - Page 310

Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth at least every six months. Duringvery cold, damp weather more frequent application may be required. (See "Recommended Fluids and Lubricants" in the Index.) Washing Your Vehicle The best way to preserve your vehicle's finish to is keep it clean by washing it often with lukewarm or cold water. Cleaning a Removable Roof Panel Special care is necessary when cleaning, removing and/or storing the roof panel. Flush with water to remove dust and dirt, then dry the panel. Clean the panel with GM Glass Cleaner. Leave the Don't wash your vehicle in the direct raysthe sun. of Don't use strong soaps chemical detergents. Use or liquid hand, dish or car washing (mild detergent) soaps. You can get GM-approved cleaning products from your dealer. (See "AppearanceCare and Materials" in the Index.) Don'tuse cleaning agents that are petroleum based, or that contain acid abrasives. All cleaning or agents shouldbe flushed promptly and not allowed to dry on the surface, or they could stain. Dry the finish with a soft, clean chamois an all-cotton towel to or avoid surface scratchesand water spotting. cleaner on the panel one minute, then wipe for the panel with a soft, lint-free cloth. Don't use abrasive cleaning materials. High pressurecar washes may cause water to enter your vehicle. Cleaning the Outside Your Vehicle of The paint finishon your vehicle provides beauty, depth of color, gloss retention and durability. Cleaning Exterior LampsLenses Use lukewarm or cold water, soft cloth and a liquid a hand, dish orcar washing (mild detergent) soap to clean exterior lamps and lenses. Follow instructions under "Washing Your Vehicle."