2021 FORD SUPER DUTY oil change

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 services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km), six months or
600 engine hours
Inspect the engine and secondary cooling system coolant
concentration (freeze-point protection) and additive
(corrosion inhibitor) strength. If your vehicle has orange-
colored coolant, add coolant additive if necessary.
Every
30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.
Every
60,000 mi
(96,000 km) or 2400
engine hours
Note: If your vehicle has orange-colored coolant and you add coolant additive, do not
exceed the specified maximum of
50 fl oz (1.4 L) for the engine and 20 fl oz (473 ml) for
the secondary cooling system. Operating the engine with excessive coolant additive may
cause overheating which could lead to severe, permanent engine damage.
Note: After the initial coolant flush and fill at
60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter. Sustained High-speed Driving at Gross Vehicle Weight Rating (Maximum Loaded Weight
for Vehicle Operation)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every
15,000 mi
(24,000 km), six months or
600 engine hours
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every
30,000 mi
(48,000 km)
579
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Scheduled Maintenance

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) and additive
(corrosion inhibitor) strength. If your vehicle has orange-
colored coolant, add coolant additive if necessary.
Every 30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.
Every
60,000 mi
(96,000 km) or 2400
engine hours
Note: If your vehicle has orange-colored coolant and you add coolant additive, do not
exceed the specified maximum of 48 fluid ounces (1.4 liters) for the engine and 16 fluid
ounces (473 ml) for the secondary cooling system. Operating the engine with excessive
coolant additive may cause overheating which could lead to severe, permanent engine
damage.
Note: After the initial coolant flush and fill at
60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter. Operating in Sustained Ambient Temperatures Below -9°F (-23°C) or Above 100°F (38°C)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every
15,000 mi
(24,000 km), six months or
600 engine hours
Replace the wheel bearing grease and grease seals if using
non-sealed bearings. (Two-wheel drive vehicles)
Every
30,000 mi
(48,000 km) Operating in Dusty or Sandy Conditions (Such as Unpaved or Dusty Roads)
Rotate the tires, inspect the tires for wear and measure
tread depth.1
Every
7,500 mi (12,000 km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
Inspect the steering and suspension ball joints and tie rods.
Lubricate any grease fittings.
580
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Scheduled Maintenance

Operating in Dusty or Sandy Conditions (Such as Unpaved or Dusty Roads)
Change the engine oil and filter. 2
Every 7,500 mi (12,000 km),
six months or 300 engine
hours
Inspect and lubricate the U-joints.
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km), 6 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)
1 Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes. 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 7,000 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 7,000 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).
581
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Scheduled Maintenance

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)
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 Intelligent Oil-Life Monitor after engine oil and filter changes. Using Biodiesel, up to and Including 20% Biodiesel (B20)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every
15,000 mi
(24,000 km), six months or
300 engine hours Using Fuel Other Than Ultra-low Sulfur Diesel Fuel - Vehicles Operated Where Ultra-low
Sulfur Diesel Fuel is not Required or Available
Change engine oil and filter.
Every
2,500 mi (4,000 km)
or three months (if using
high sulfur fuel with more
than 500 ppm sulfur)
Change engine oil and filter.
Every
5,000 mi (8,000 km)
or six months (if using high
sulfur fuel with fewer than
500 ppm sulfur)
Exceptions
Axle and Transfer Case Maintenance
Axle(s) and transfer case (4X4 only) fluid
changes or level checks are not required
unless a leak is suspected or the assembly
has been submerged in water. During long
periods of trailer towing with outside
temperatures above
70°F (21°C) or at wide-open throttle for long periods above
45 mph (72 km/h)
, change the rear axle
fluid every 30,000 mi (48,000 km) if the
rear axle is filled with non-synthetic fluid.
This interval can be waived and the
150,000 mi (240,000 km) service interval
can continue if the rear axle is filled with
75W140 synthetic gear fluid meeting Ford
582
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Scheduled Maintenance

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 Specifications (page 441).
Additional Axle Maintenance for Dual
Rear Wheels
Change rear axle fluid every
250,000 mi
(400,000 km) under normal driving
conditions on all commercial applications.
When operating your vehicle at or near
maximum gross vehicle weights, change
the rear axle fluid every
60,000 mi
(96,000 km). In addition, follow this
60,000 mi (96,000 km) schedule when
operating your vehicle under the special
operating conditions where noted.
California Fuel Filter Replacement
If you register your vehicle in California, the
California Air Resources Board has
determined that the failure to perform this
maintenance item does not nullify the
emission warranty or limit recall liability
before the completion of your vehicle's
useful life. Ford Motor Company, however,
urges you to have all recommended
maintenance services performed at the
specified intervals and to record all vehicle
service.
Hot Climate Oil Change Intervals
Vehicles operating in the Middle East,
North Africa, Sub-Saharan Africa or
locations with similar climates using an
American Petroleum Institute (API)
Certified for Gasoline Engines (Certification
mark) oil of SM or SN quality, the normal
oil change interval is 3,000 mi (5,000 km).
If the available API SM or SN oils are not
available, then the oil change interval is
2,000 mi (3,000 km)
. Engine Air Filter and Cabin Air Filter
Replacement
The life of the engine air filter and cabin air
filter is dependent on exposure to dusty
and dirty conditions. Vehicles operated in
these conditions require frequent
inspection and replacement of the engine
air filter and cabin air filter.
Diesel Particulate Filter
Over time, a slight amount of ash builds
up in the diesel particulate filter, which is
not removed during the regeneration
process. The filter may need to be replaced
with a new or remanufactured part at
approximately 250,000 mi (400,000 km).
Actual mileage varies depending on engine
and vehicle operating conditions.
In this case, the engine control system sets
a service light (wrench icon) to inform you
to bring your vehicle to the dealer for
service. If there are any issues with the
oxidation catalyst or particulate filter
system, a service light (wrench or engine
icon) sets by the engine control system to
inform you to bring your vehicle into a
dealer for service.
583
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Scheduled Maintenance

Car Wash
See: Cleaning the Exterior.............................. 392
Catalytic Converter......................................195
On-Board Diagnostics (OBD-II)................... 196
Readiness for Inspection and Maintenance (I/M) Testing.................................................... 197
Center Console
................................................171
Changing a Bulb...........................................383
Cargo Lamp and Central High Mounted
Brake Lamp Bulbs........................................ 385
Fog Lamp Bulbs................................................. 384
Front Park and Direction Indicator Lamp Bulbs.................................................................. 383
Headlamp Bulbs................................................ 383
LED Lamps.......................................................... 386
License Plate Lamp Bulb............................... 386
Rear Lamps, Brake Lamps, Rear Direction Indicator and Reversing Lamp
Bulbs................................................................. 384
Changing a Fuse
..........................................346
Fuses...................................................................... 346
Changing a Road Wheel...........................429 Dissimilar Spare Wheel and Tire Assembly
Information..................................................... 429
Jacking the Vehicle............................................ 434
Location of the Spare Tire and Tools........430
Stowing the Flat Tire or Spare Tire.............439
Tire Change Procedure.................................... 430
Changing the 12V Battery.........................379 Battery Management System...................... 380
Changing the Engine Air Filter - 6.2L
.................................................................357
Changing the Engine Air Filter - 6.7L Diesel............................................................358
Air Filter Restriction Gauge............................ 359
Changing the Engine Air Filter - 7.3L.................................................................360
Changing the Engine-Mounted and Diesel Fuel Conditioner Module Fuel
Filters - 6.7L Diesel...................................386
Diesel Fuel Conditioner Module Filter................................................................... 386
Engine-mounted Fuel Filter.......................... 389
Changing the Engine Oil and Oil Filter...............................................................356
Engine lubrication for severe service operation......................................................... 356Changing the Vehicle Wi-Fi Hotspot
Name or Password...................................478
Changing the Wiper Blades.....................382
Checking MyKey System Status..............64 MyKey Distance.................................................... 64
Number of Admin Keys...................................... 64
Number of MyKeys.............................................. 64
Checking the Wiper Blades.....................382
Child Restraint and Seatbelt Maintenance.................................................44
Child Restraint Positioning.........................35
Child Safety
......................................................22
General Information............................................ 22
Child Safety Locks..........................................37 Left-Hand Side...................................................... 37
Right-Hand Side................................................... 37
Cleaning Leather Seats
.............................397
With King Ranch Edition................................. 398
Without King Ranch Edition........................... 397
Cleaning Products
........................................391
Materials................................................................ 391
Cleaning the Engine
....................................393
Cleaning the Exhaust - 6.7L Diesel.......394
Cleaning the Exterior..................................392 Cleaning the Exterior Lamps......................... 392
Cleaning the Exterior Precautions...............392
Exterior Chrome Parts...................................... 392
Exterior Plastic Parts........................................ 392
Stripes or Graphics............................................ 392
Underbody........................................................... 393
Under Hood......................................................... 393
Cleaning the Instrument Panel and Instrument Cluster Lens
.........................397
Cleaning the Interior...................................395
Cleaning the Wheels..................................399
Cleaning the Windows and Wiper Blades...........................................................394
Clearing All MyKeys.......................................63
Climate.............................................................531 Accessing Rear Climate Controls................533
Accessing the Climate Control Menu..........531
Directing the Airflow.......................................... 531
Rear Climate Control Lock Indicator..........533
Setting the Blower Motor Speed.................. 531
Setting the Temperature.................................. 531
Switching Auto Mode On and Off................531
Switching Dual Zone Mode On and Off....................................................................... 532
649
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Severe Climates.................................................
365
Engine Coolant Check - 6.7L Diesel............................................................368
Adding Coolant.................................................. 368
Coolant Change................................................... 371
Engine and Secondary Cooling System Refill Procedure............................................. 370
Engine-driven Cooling Fan.............................. 371
Recycled Coolant............................................... 370
Severe Climates................................................... 371
Engine Coolant Check - 7.3L.....................371 Adding Coolant................................................... 372
Coolant Change.................................................. 374
Engine Coolant Temperature Management.................................................. 375
Engine-driven Cooling Fan (Fan Clutch).............................................................. 374
Fail-Safe Cooling................................................ 374
Recycled Coolant............................................... 373
Severe Climates.................................................. 374
Engine Emission Control...........................194
Engine Idle Shutdown.................................182
Engine Immobilizer See: Passive Anti-Theft System..................... 76
Engine Oil Capacity and Specification - 6.2L................................................................449
Alternative Engine Oil for Extremely Cold Climates ........................................................... 450
Engine Oil Capacity and Specification - 6.7L Diesel...................................................450
Alternative Engine Oil for Biodiesel Fuel Blends (B20 Max)........................................ 452
Alternative Engine Oil for Extremely Cold Climates........................................................... 452
Alternative Engine Oil for Severe Duty Service.............................................................. 453
Engine Oil............................................................. 450
Engine Oil Capacity and Specification - 7.3L.................................................................453
Alternative Engine Oil for Extremely Cold Climates........................................................... 454
Engine Oil Check - 6.2L..............................352 Adding Engine Oil.............................................. 353
Engine Oil Check - 6.7L Diesel................354 Adding Engine Oil.............................................. 354
Engine lubrication for severe service operation ......................................................... 355Engine Oil Check - 7.3L..............................355
Adding Engine Oil.............................................. 355
Engine Oil Dipstick - 6.2L..........................352
Engine Oil Dipstick - 6.7L Diesel.............352
Engine Oil Dipstick - 7.3L...........................352
Engine Specifications - 6.2L.....................441 Drivebelt Routing................................................ 441
Engine Specifications - 6.7L Diesel.......441 Drivebelt Routing............................................... 442
Engine Specifications - 7.3L.....................442 Drivebelt Routing............................................... 443
Entertainment................................................521 AM/FM Radio...................................................... 522
Apps....................................................................... 530
Bluetooth Stereo or USB................................ 529
CD........................................................................\
.... 528
HD Radio ™ Information (If
Available)......................................................... 525
SiriusXM® Satellite Radio (If Activated)........................................................ 523
Sources.................................................................. 522
Supported Media Players, Formats and Metadata Information................................ 530
USB Ports............................................................. 530
Environment.....................................................19
Essential Towing Checks..........................305 Before Towing a Trailer..................................... 313
Dynamic Hitching Using the Rear View Camera System............................................ 306
Hitches................................................................... 307
Integrated Trailer Brake Controller...............310
Launching or Retrieving a Boat or Personal Watercraft (PWC)......................................... 314
Safety Chains..................................................... 309
Trailer Brakes...................................................... 309
Trailer Lamps........................................................ 313
Trailer Towing Connector............................... 305
When Towing a Trailer...................................... 313
Event Data Recording See: Data Recording.............................................. 11
Export Unique Options
.................................18
Extending the Remote Start Duration........................................................140
Exterior Mirrors
................................................96
Blind Spot Information System...................... 99
Clearance Lamps ................................................ 98
Direction Indicator Mirrors ............................... 98
Fold-Away Exterior Mirrors............................... 96
652
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index

Motorcraft Parts - 6.2L..............................443
Motorcraft Parts - 6.7L Diesel.................445
Motorcraft Parts - 7.3L..............................446
MyKey – Troubleshooting
...........................64
MyKey ™..............................................................61
Principle of Operation......................................... 61
N
Navigation......................................................535 Changing the Format of the Map................537
cityseeker.............................................................. 539
Michelin Travel Guide...................................... 540
Navigation Map Accuracy and Updates........................................................... 540
Route Guidance.................................................. 537
Setting a Destination....................................... 536
SiriusXM Traffic and Travel Link.................. 540
Zoom....................................................................... 537
Normal Scheduled Maintenance..........568 Diesel Engine........................................................ 571
Gasoline Engine.................................................. 570
Intelligent Oil-Life Monitor............................ 568
O
Off-Road Driving
...........................................317
After Off-Road Driving...................................... 319
Basic Off-road Driving Techniques..............318
Crossing Obstacles............................................ 319
Hill Climbing......................................................... 319
Oil Change Indicator Reset......................356
Oil Check See: Engine Oil Check - 6.2L.......................... 352
See: Engine Oil Check - 6.7L Diesel............354
See: Engine Oil Check - 7.3L.......................... 355
Opening and Closing the Hood
..............348
Ordering Additional Owner's Literature......................................................337
Obtaining a French Owner ’s Manual..........337
Overhead Console.........................................171
Overriding Automatic High Beam Control............................................................93
P
Parking Aids
...................................................234
Principle of Operation...................................... 234Parking Brake
.................................................225
Passive Anti-Theft System.........................76
SecuriLock®........................................................... 76
PATS See: Passive Anti-Theft System..................... 76
Perchlorate........................................................15
Phone...............................................................533 Android Auto....................................................... 535
Apple CarPlay..................................................... 535
Pairing Your Cell Phone for the First Time................................................................... 534
Text Messaging................................................... 534
Using Your Cell Phone..................................... 534
Pickup Bed Anchor Points.........................277 Installing and Removing the Pickup Bed
Tie-Down Cleats............................................ 277
Locating the Pickup Bed Anchor Points................................................................. 277
Pickup Bed Anchor Point Load Capacities........................................................ 278
Pickup Bed Anchor Point Precautions...................................................... 277
Pickup Bed
......................................................277
Pickup Bed Anchor Points............................... 277
Pickup Bed Ramps............................................ 279
Pickup Bed Ramps......................................279 Installing and Removing the Pickup Bed
Ramp Holder................................................... 279
Installing and Removing the Pickup Bed Ramps.............................................................. 280
Pickup Bed Ramp Precautions..................... 279
Storing the Pickup Bed Ramps..................... 281
Post-Crash Alert System..........................329
Power Door Locks See: Locking and Unlocking............................. 66
Power Running Boards
.................................78
Power Seats...................................................154
Adjusting the Lumbar Support...................... 155
Adjusting the Multi-Contour Front Seats With Active Motion ....................................... 155
Power Steering Fluid Check
.....................378
Power Take-Off.............................................212
Split Shaft Capability........................................ 212
Power Windows
.............................................95
Accessory Delay................................................... 96
Bounce-Back......................................................... 95
One-Touch Up or Down..................................... 95
Window Lock......................................................... 96
656
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Second-Printing Index