Lincoln Navigator Owner's Manual page 361

Scheduled Maintenance
SPECIAL OPERATING CONDITIONS
If you operate your vehicle primarily in any of the following conditions,
you need to perform additional maintenance as indicated. If you
occasionally operate your vehicle under any of these conditions, it is
not necessary to perform the additional maintenance. For specific
recommendations, see your dealership service advisor or technician.
Towing a Trailer or Using a Car-top Carrier
Inspect frequently,
service as required
Every 5000 miles
(8000 km)
Every 5000 miles
(8000 km) or six
months
Every 60000 miles
(96000 km)
*
Reset your oil life monitoring system after each engine oil and filter
change. See the Instrument Cluster chapter.
2013 Navigator (nav)
Owners Guide gf, 1st Printing
USA (fus)
Inspect and lubricate U-joints, if equipped with
grease fittings.
See axle maintenance items under
Exceptions.
Inspect wheels and related components for
abnormal noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and
measure tread depth.
Change engine oil and filter.
Inspect and lubricate U-joints, if equipped with
grease fittings.
Change transfer case fluid (4WD vehicles).
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