1997 GMC Savana Van Owner's Manual - Page 289

Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint finish looking new by keeping your vehicle garaged or covered whenever possible. abrasive cleaning brushes on them because you could damage the surface. Don't take your vehicle throughan automatic car wash that has silicon carbide tire cleaning brushes. These brushes can also damage the surface of these wheels. Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned regularly to keep their luster. Washing with water allthat is usually is needed. However, you may use chrome polish on chrome or stainless steel trim, if necessary. Use special care with aluminum trim. To avoid damaging protective trim, never use auto or chrome polish, steam or caustic soap to clean aluminum. A coating of wax, rubbed to high polish, is recommended for all bright metal parts. Cleaning Tires To clean your tires, use a stiff brush with a tire cleaner. I NOTICE: When applying a tire dressing always take care to wipe off any overspray or splash from all painted surfaces on the body wheels of the vehicle. or Petroleum-based products may damage the paint finish. Cleaning Aluminum Wheels (If Equipped) Keep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, drywith a soft clean towel. A wax may then beapplied. 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 Sheet Metal Damage If your vehicle isdamaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to the parts repairedor replaced to restore corrosion protection.