•
Some automatic car washes may cause damage to the finish on your
wheel rims or covers. Chemical-strength cleaners, or cleaning
chemicals, in combination with brush agitation to remove brake dust
and dirt, could wear away the clearcoat finish over time.
•
Do not use hydrofluoric acid-based or high caustic-based wheel
cleaners, steel wool, fuels or strong household detergent.
•
To remove tar and grease, use Motorcraft Bug and Tar Remover
(ZC-42), available from your authorized dealer.
ENGINE
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal. When washing:
•
Take care when using a power washer to clean the engine. The
high-pressure fluid could penetrate the sealed parts and cause
damage.
•
Do not spray a hot engine with cold water to avoid cracking the
engine block or other engine components.
•
Spray Motorcraft Engine Shampoo and Degreaser (ZC-20) on all parts
that require cleaning and pressure rinse clean.
•
Cover the highlighted areas to prevent water damage when cleaning
the engine.
•
Never wash or rinse the engine while it is running; water in the
running engine may cause internal damage.
2007 Navigator
(nav)
Owners Guide (post-2002-fmt)
USA
(fus)
Cleaning
290
