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Off-road operation
Inspect frequently,
service as required
Inspect steering linkage, ball joints and
U-joints. Lubricate if equipped with grease
fittings.
Replace engine air filter.
Every 5000 miles
(8000 km) or six
months
Change engine oil and filter.
*
Inspect wheels and related components for
abnormal noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and
measure tread depth.
Every 30000 miles
(48000 km)
Replace front wheel bearing grease and grease
seals if non-sealed bearings are used (2WD
vehicles).
Every 60000 miles
(96000 km)
Change transfer case fluid (Four–wheel drive
vehicles).
*
Reset your Intelligent Oil-Life Monitor after each engine oil and filter
change. See the Instrument Cluster chapter.
Scheduled Maintenance 457
2015 Navigator (nav)
Owners Guide gf, 1st Printing, July 2014
USA (fus)
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