Extensive idling or low-speed driving for long distances, as in heavy commercial use
Change engine oil and filter as indicated by the information display and perform services listed in the Normal
Scheduled Maintenance chart.
As required
Replace engine air filter.
Inspect frequently, service
as required
Change transfer case fluid (Four-wheel drive vehicles).
Every 60,000 mi
(96,000 km)
Replace spark plugs.
Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Replace engine air filter.
Inspect frequently, service
as required
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
Every 5,000 mi (8,000 km)
Rotate tires, inspect tires for wear and measure tread depth.
Change engine oil and filter.
*
Every 5,000 mi (8,000 km)
or six months
Change transfer case fluid (Four-wheel drive vehicles).
Every 60,000 mi
(96,000 km)
*
Reset your Intelligent Oil-Life Monitor after each engine oil and filter change.
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Navigator (TB5) Canada/United States of America, enUSA, Edition date: 201712, Second Printing
Scheduled Maintenance
