1998 Pontiac Grand Prix Owner's Manual - Page 332

Your vehicle has a "basecoatjclearcoat" paint finish. The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoatjclearcoat paint finish. Cleaning AluminumWheels (If Equipped) Keep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel.wax A may then be applied. The surface of these wheels is similar to the painted surface of your vehicle. Don't use strong soaps, chemicals, abrasive polishes, abrasive cleaners or abrasive cleaning brusheson them becauseyou could damage the surface. I NOTICE: Machine compounding or aggressive polishing on may a basecoat/clearcoat paint finish dull the finish or leave swirl marks. Don't take your vehicle through an automatic car wash Foreign materials such as calcium chloride and other that has silicon carbide tire cleaning brushes. These salts, ice melting agents, road oil and tar, tree sap, bird brushes can also damage the surface of these wheels. droppings, chemicals from industrial chimneys, etc., can damage your vehicle's finish if they remain on painted surfaces. Wash the vehicleas soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces subject to aging, weather are and chemical fallout that can their toll overa period take of years. You can help to keep the paint finish looking new by keeping your vehicle garagedor covered whenever possible.