Ford 2011 Crown Victoria Owner's Manual page 222

Cleaning
• 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 hot or running; water in the
running engine may cause internal damage.
• Never wash or rinse any ignition coil, spark plug wire or spark plug
well, or the area in and around these locations.
PLASTIC (NON-PAINTED) EXTERIOR PARTS
Use only approved products to clean plastic parts. These products are
available from your authorized dealer.
• For routine cleaning, use Motorcraft Detail Wash (ZC-3-A).
• If tar or grease spots are present, use Motorcraft Bug and Tar
Remover (ZC-42).
222
2011 Crown Victoria (cro)
Owners Guide, 2nd Printing
USA (fus)