Cleaning Your Vehicle; Exterior Washing - Mack Granite GU Series Operator's Handbook Manual

268 MAINTENANCE AND LUBRICATION

CLEANING YOUR VEHICLE

The best protection against environmental influences that can hurt your
vehicle's finish is frequent washing and waxing. How often this is required
depends on how much the vehicle is used, where it is parked and weather
conditions. Frequent washing is required to remove oils, dirt and grime that
can stain and oxidize the painted and polished surfaces of your new truck.

Exterior Washing

Recommendations for the first 30 days...
• Only wash the vehicle by hand with cool water, a mild car wash solution and
a soft cloth or sponge. Do not use a commercial truck wash.
• Wash the vehicle in the shade, never in direct sunlight.
• Do not dry wipe the finish; always use clean water. Dry wiping could scratch
the finish.
• Do not park near factories with heavy smoke fallout for extended periods
of time.
• Bird droppings have high acid content and can damage freshly painted
surfaces. They should be cleaned off as soon as possible.
• Do not spill gasoline, diesel fuel, oil, antifreeze, transmission fluid or any
solvents of the like on the new finish. If you do... IMMEDIATELY rinse off
with water. DO NOT WIPE.
• Do not scrape ice or snow from surface. Brush off the loose material with a
soft snow brush.
Recommendations for the first 90 days...
• Do not wax or polish the vehicle; this will allow the finish to dry and harden
completely. (Do not use waxes or polishes that contain silicone.)
Note: Do not wash the vehicle in direct sunlight.
DANGER
Test the service brakes after washing the vehicle. Moisture and/or ice on the
brakes can affect braking efficiency.
Note: When washing the vehicle in cold/freezing weather, avoid direct water spray
into the door lock cylinders, as the water may freeze in the lock mechanisms.