2010 Lincoln Navigator Owner Guide 1st Printing (Spanish) - Page 760

Cleaning • Never apply any cleaning chemical to hot or warm wheel rims or covers. • 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. 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. 330 2010 Navigator (nav) Owners Guide (own2002), 1st Printing USA (fus)