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Extensive idling or low-speed driving for long distances, as in heavy commercial use
(such as delivery, taxi, patrol car or livery)
Change transfer case fluid (Four-wheel drive vehicles).Every 30000 miles (48000
km)
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Replace spark plugs.Every 60000 miles (96000
km)
*
Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
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 5000 miles (8000
km)
Rotate tires
*
, inspect tires for wear and measure tread
depth.
Change engine oil and filter.Every 5000 miles (8000
km) or six months
Inspect and lubricate U-joints.
Replace front wheel bearing grease and grease seals if
non-sealed bearings are used.
Every 30000 miles (48000
km)
Change rear axle fluid (F-450 and F-550 only).Every 50000 miles (80000
km)
Change transfer case fluid (Four-wheel drive vehicles).Every 60000 miles (96000
km)
*
Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
459
Super Duty (TFA) Canada/United States of America, enUSA, First Printing
Scheduled Maintenance
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