FORD 2001 F-550 v.2 - Manual (Page 245)

Avoid getting wax on the windshield, or on any surfaces which appear
coarse or bumpy. If you have wax applied at a commercial car wash, it is
recommended that you clean the wiper blades and windshield as
described in Cleaning the wiper blades and windshield.
Repairing paint chips
Minor scratches or paint damage from road debris may be repaired with
the Ultra Touch Prep and Finishing Kit (F7AZ-19K507–BA), Lacquer
Touch-up Paint (ALBZ-19500–XXXXA), or Exterior Acrylic Spray
Lacquer (ALAZ-19500–XXXXA) from the Ford Car Care Chemicals line.
Please note that the part numbers (shown as XXXX above) will vary with
your vehicle’s specific coloring. Observe the application instructions on
the products.
Remove particles such as bird droppings, tree sap, insect remains, tar
spots, road salt and industrial fallout immediately.
Cleaning the wheels
Wash with the same detergent as the body of your vehicle. Do not use
acid-based or alcohol-based wheel cleaners, steel wool, fuel or strong
detergents. Never use abrasives that will damage the finish of special
wheel surfaces. Use a tar remover to remove grease and tar.
The brushes used in some automatic car washes may damage the finish
on your wheels. Before going to a car wash, find out if the brushes are
abrasive.
Maintenance and care
245