service schedule FORD SUPER DUTY 2021 Owner's Manual

FORD SUPER DUTY 2021 Owner's Manual SUPER DUTY 2021 FORD FORD https://www.carmanualsonline.info/img/11/58818/w960_58818-0.png FORD SUPER DUTY 2021 Owner's Manual

Page 577 of 666

FORD SUPER DUTY 2021 Owners Manual Other Maintenance items
1
Change the automatic transmission fluid and filter. Consult
dealer for requirements.
Every 150,000 mi
(240,000 km) Replace the accessory drive belt or belts if not replaced
w

Page 578 of 666

FORD SUPER DUTY 2021 Owners Manual Towing a Trailer or Using a Car-top Carrier
Inspect and lubricate U-joints if equipped with grease
fittings.
Inspect frequently, service
as required
See axle maintenance items under Exceptions.
Inspec

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FORD SUPER DUTY 2021 Owners Manual Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use
(Such as Delivery, Taxi, Patrol Car or Livery)
Change engine oil and filter.
Every 5,000 mi (8,000 km)
or six month

Page 580 of 666

FORD SUPER DUTY 2021 Owners Manual Off-road operation
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and measure tread
depth. 1
Replace front wheel bearing gr

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FORD SUPER DUTY 2021 Owners Manual Towing a Trailer or Using a Car-top Carrier
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection) and additive
(corrosion inhibitor) strength. If your vehicle

Page 582 of 666

FORD SUPER DUTY 2021 Owners Manual Frequent Low-speed Operation, Consistent Heavy Traffic Under 25 mph (40 km/h)  or
Long Rush-hour Traffic
Change the engine oil and filter as indicated by the
information display, and perform the servi

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FORD SUPER DUTY 2021 Owners Manual Sustained High-speed Driving at Gross Vehicle Weight Rating (Maximum Loaded Weight
for Vehicle Operation)
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection

Page 585 of 666

FORD SUPER DUTY 2021 Owners Manual Off-road Operation
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)
Insp

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FORD SUPER DUTY 2021 Owners Manual specification WSL-M2C192-A, part number
XY-75W140-QL, or equivalent. Add friction
modifier XL-3 (EST-M2C118-A) or
equivalent for complete refill of
Traction-Lok rear axles.  See Capacities
and Specifi

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FORD SUPER DUTY 2021 Owners Manual Switching the Heated Seat Settings On and
Off........................................................................\
. 141
Switching the Heated Steering Wheel Settings On and Off....................
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