Mercury 1999 Mountaineer - Manual (Page 229)

• 5.0L
• 4.0L SOHC
• Never wash or rinse the engine while it is running; water in the
running engine may cause internal damage.
Cleaning the wheels
Wash with the same detergent as the body of your vehicle. Do not use
acid-based or alcohol-based wheel cleaners, steel wool, fuel or strong
detergents. Never use abrasives that will damage the finish of special
wheel surfaces. Use a tar remover to remove grease and tar.
Maintenance and care
229