2011 Lincoln Navigator Owner Guide 1st Printing - Page 362

Scheduled Maintenance Guide Hot climate oil change intervals ❑ If operating conditions are normal and you drive your Ford, Lincoln or Mercury vehicle under typical, everyday conditions and you are using an API performance category oil of SL or later (for example SM, etc.) then you can follow the 7,500 mile (12,000 km) normal service oil change intervals schedule. Vehicles operating in the Middle East, North Africa, Sub-Saharan Africa or locations with similar climates must follow the oil change interval of 3,000 mile (5,000 km) if the owner is using oils defined by the American Petroleum Institute (API) performance category of API SK or earlier (for example SJ, etc.). Engine air filter & cabin air filter replacement ❑ Engine air filter and cabin air filter life is dependent on exposure to dusty and dirty conditions. Vehicles operated in these conditions will require frequent inspection and replacement of the engine air filter and cabin air filter. COOLANT CHANGE RECORD Engine coolant ❑ Initial change - 6 years or 105,000 miles (168,000 km) (whichever comes first). ❑ After initial change - every 3 years or 45,000 miles (72,000 km). 362 2011 Navigator (nav) Owners Guide, 1st Printing USA (fus)