2006 Lincoln Navigator Owner Guide 2nd Printing - Page 341

Cleaning • 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. 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). 341 2006 Navigator (nav) Owners Guide (post-2002-fmt) USA (fus)