Off-road Operation
Inspect functional holes in each leg of the twin exhaust
tips and the holes under the shield just inboard of the right
rear tire to make sure they are clean and clear of debris or
foreign materials. Refer to the Vehicle Care chapter of your
owner’s manual for more information.
As required
Inspect the steering and suspension ball joints and tie rods.
Lubricate any grease fittings.
Rotate the tires, inspect the tires for wear and measure
tread depth.
1
Every 7,500 mi (12,000 km),
six months or 300 engine
hours
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
Change the engine oil and filter.
2
Every 7,500 mi (12,000 km)
or 300 engine hours
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km), six months or
600 engine hours
Replace the air inlet foam filter.
Every 30,000 mi
(48,000 km)
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles).
Change the rear axle fluid (Dana rear axles only - some F-
350s; all F-450s and F-550s).
Every 50,000 mi
(80,000 km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Inspect the front axle fluid. (Four-wheel drive vehicles)
1
Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
2
Reset the Oil Change Reminder after engine oil and filter changes.
634
2022 Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202103, First-Printing
Scheduled Maintenance
