2014 Lincoln Navigator L Owner Manual Printing 1 - Page 493

492 Scheduled Maintenance Extensive idling or low-speed driving for long distances as in heavy commercial use (such as delivery, taxi, patrol car or livery) Every 5000 miles Change engine oil and filter.* (8000 km) or six months Every 60000 miles Change transfer case fluid (4WD vehicles). (96000 km) Replace spark plugs. Reset your oil life monitoring system after each engine oil and filter change. See the Instrument Cluster chapter. Operating in dusty or sandy conditions such as unpaved or dusty roads Inspect frequently, Replace engine air filter. service as required Every 5000 miles Inspect the wheels and related components for (8000 km) abnormal noise, wear, looseness or drag. Rotate tires, inspect tires for wear and measure tread depth. Change engine oil and filter.* Every 5000 miles (8000 km) or Inspect and lubricate U-joints, if equipped with six months grease fittings. Every 60000 miles Change transfer case fluid (4WD vehicles). (96000 km) Reset your oil life monitoring system after each engine oil and filter change. See the Instrument Cluster chapter. * * 2014 Navigator (nav) Owners Guide gf, 1st Printing, June 2013 USA (fus)