1997 Buick Regal Owner's Manual - Page 328

Cleaning the Outsideof the Windshield and Wiper Blades If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax, sap or other material may be on the blade or windshield. Clean the outside of the windshield with GM Windshield Cleaner, Bon Powder (non-scratching glass cleaning powder), GM P r No. 1050011. The windshield at it is clean if beads do not form when you rinse with water. A m i @ Cleaning theOutside of Your Buick The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. Washing Your Vehicle The best way to preserve your vehicle's finish is tokeep it clean by washing it often with lukewarm or cold water. Don't wash your vehicle in the direct raysof the sun. Don't use strong soaps or chemical detergents. Use liquid hand, dish or car washing (mild detergent) soaps. Don't use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be flushed promptly and not allowed to dry on the surface, or they could stain. Dry the finish with a soft, clean chamois or an all-cotton towel to avoid surface scratchesand water spotting. High pressure car washes may cause water to enter your vehicle. Cleaning Exterior LampsLenses Use lukewarm or coldwater, a soft cloth and a liquid hand, dish or carwashing (mild detergent) soap toclean exterior lamps and lenses. Follow instructions under "Washing Your Vehicle." Grime from the windshield will stick to the wiper blades and affect their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Check the wiper blades and clean them as necessary; replace blades that look worn. Weatherstrips Silicone greaseon weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone greasewith a clean cloth at least every six months. During very cold, damp weather more frequent application may be required. (See "Recommended Fluids and Lubricants" in the Index.) 6-52