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. In Canada use
Motorcraft Engine Shampoo (CXC-66-A).
•
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.
PLASTIC (NON-PAINTED) EXTERIOR PARTS
Use only approved products to clean plastic parts. These products are
available from your authorized dealer.
2009 Navigator
(nav)
Owners Guide, 2nd Printing
USA
(fus)
Cleaning
324
