2021 FORD F-450 towing

Towing a Trailer or Using a Car-top Carrier
Inspect and lubricate the U-joints grease fittings - if
applicable.
Inspect frequently, service
as required
See the axle maintenance items under Exceptions.
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.1
Change the engine oil and filter.
Every
5,000 mi (8,000 km)
or six months. Inspect and lubricate the U-joints grease fittings. - if
applicable.
Replace the front wheel bearing grease and grease seals
if you use non-sealed bearings.
Every
30,000 mi
(48,000 km)
Change the transfer case fluid, four-wheel drive vehicles.
Every
60,000 mi
(96,000 km) Replace the spark plugs.
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Only rotate
the rear wheels if you notice unusual wear. Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use
- Such as Delivery, Taxi, Patrol Car or Livery
Replace the engine air filter.
Inspect frequently, service
as required
Replace the cabin air filter.
Inspect the brake system.
Every
5,000 mi (8,000 km)
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Lubricate the control arm and steering ball joints grease
fittings - if applicable.
Rotate the tires, inspect tires for wear and measure the
tread depth.1
Inspect and lubricate the U-joints grease fittings - if
applicable.
Every
5,000 mi (8,000 km)
or six months
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Scheduled Maintenance

Off-road operation
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate tires, inspect tires for wear and measure the tread
depth. 1
Replace front wheel bearing grease and grease seals if
you use non-sealed bearings.
Every 30,000 mi
(48,000 km)
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Only rotate
the rear wheels if you notice unusual wear. Exclusive use of E85 - Flex Fuel Vehicles Only
If ran exclusively on E85, fill the fuel tank full with regular
unleaded fuel.
Every oil change interval
Diesel Engine
If you operate your vehicle primarily in any
of the following conditions, you need to
perform extra maintenance as indicated.
If you operate your vehicle occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician. Towing a Trailer or Using a Car-top Carrier
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
See the axle maintenance items under
Exceptions.
Replace the engine-mounted and frame-mounted fuel
filters.
Every
15,000 mi
(24,000 km) or six months,
600 engine hours
577
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Scheduled Maintenance

Towing a Trailer or Using a Car-top Carrier
Replace the wheel bearing grease and grease seals if you
use non-sealed bearings. Two-wheel drive vehicles.
Every 30,000 mi
(48,000 km)
Flush and refill the coolant.
At
60,000 mi (96,000 km)
or 2400 engine hours
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. Frequent or Extended Idling - Over 10 Minutes Per Hour of Normal Driving or Frequent
Low-speed Operation if you use your Vehicle for Stationary 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
Flush and refill the coolant.
At
60,000 mi (96,000 km)
or 2400 engine hours
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. 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
Flush and refill the coolant.
At
60,000 mi (96,000 km)
or 2400 engine hours
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.
578
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Scheduled Maintenance

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
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 the rear axle fluid every
250,000 mi (400,000 km)
under normal
driving conditions on all commercial
applications. When you operate 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 you operate 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.
582
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-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, Third-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
CD........................................................................\
.... 528
HD Radio ™ Information (If
Available)......................................................... 525
SiriusXM® Satellite Radio (If Activated)........................................................ 523
Sources.................................................................. 522
Stereo or USB..................................................... 529
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, Third-Printing- Index

Heated Exterior Mirrors .....................................
98
Memory Mirrors ................................................... 98
Power Exterior Mirrors........................................ 96
PowerScope ™ Power Telescoping
Mirrors.................................................................. 97
Puddle Lamps....................................................... 98
Spot Lamps........................................................... 98
Telescoping Mirrors.............................................. 97
Trailer Towing Camera System....................... 98
F
Fastening the Seatbelts..............................39
Fastening the Cinch Tongue............................ 40
Seatbelt Locking Modes..................................... 41
Using Seatbelts During Pregnancy...............40
Using the Seatbelt with Cinch Tongue (Front Center Seat on Super Cab and
Crew Cab).......................................................... 39
Flat Tire See: Changing a Road Wheel....................... 429
Floor Mats
.......................................................323
Fog Lamps - Front See: Front Fog Lamps........................................ 89
Foot Pedals See: Adjusting the Pedals................................. 84
Ford Credit
.........................................................15
US Only..................................................................... 15
Ford Protect...................................................563 Ford Protect Extended Service Plan
(CANADA ONLY).......................................... 564
Ford Protect Extended Service Plans (U.S. Only).................................................................. 563
Four-Wheel Drive
..........................................213
Front Axle Fluid Capacity and Specification..............................................466
Front Fog Lamps
............................................89
Front Fog Lamp Indicator................................. 89
Switching the Front Fog Lamps On or Off........................................................................\
. 89
Fuel and Refueling
.......................................184
Fuel Consumption........................................193
Advertised Capacity.......................................... 193
Fuel Economy...................................................... 193
Fuel Filter - 6.2L/7.3L..................................382
Fuel Quality - Diesel.....................................187 Biodiesel................................................................ 188
Diesel Fuel Additives ........................................ 189Fuel Requirements - Choosing The Right
Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Not Required ..........187
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Required (United
States/Canada/Puerto Rico/U.S. Virgin
Islands And Other Locales) ...................... 187
Fuel Quality - E85........................................185 Choosing the Right Fuel - Flex Fuel
Vehicles............................................................. 185
Switching Between E85 and Gasoline............................................................ 186
Fuel Quality - Gasoline..............................186 Choosing the Right Fuel.................................. 186
Fuel Shutoff...................................................326
Fuel Tank Capacity - Diesel.....................457
Fuel Tank Capacity - Gasoline...............458
Fuses
................................................................339
Fuse Specification Chart..........................339 Engine Compartment Fuse Box................... 339
Passenger Compartment Fuse Panel.................................................................. 343
G
Garage Door Opener
...................................164
Garage Door Opener See: Universal Garage Door Opener...........164
Gauges ..............................................................
102
DEF Gauge............................................................ 104
Engine Coolant Temperature Gauge..........104
Engine Oil Pressure Gauge............................. 104
Fuel Gauge............................................................ 104
Transmission Fluid Temperature Gauge................................................................. 104
Turbo Boost Gauge............................................ 104
Type 1 and 2.......................................................... 102
Type 3..................................................................... 103
Gearbox See: Transmission.............................................. 207
General Information on Radio Frequencies...................................................55
Intelligent Access................................................. 55
General Maintenance Information.......565 Multi-Point Inspection..................................... 568
Owner Checks and Services......................... 566
Protecting Your Investment........................... 565
653
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Index

Pre-Collision Assist.....................................264
Adjusting the Pre-Collision Assist
Settings............................................................ 266
Blocked Sensors................................................. 267
Distance Indication and Alert....................... 265
Using the Pre-Collision Assist System.............................................................. 264
Protecting the Environment
........................19
Puncture See: Changing a Road Wheel....................... 429
R
Radio Frequency Certification Labels...........................................................584
Blind Spot Information System Sensors............................................................ 584
Body Control Module....................................... 587
Cruise Control Module.................................... 590
Keys and Remote Controls............................ 594
Passive Anti-Theft System............................ 598
Radio Transceiver Module............................. 602
SYNC...................................................................... 605
Tire Pressure Monitoring System Sensors............................................................ 609
Wireless Accessory Charging Module.........613
Rear Axle Fluid Capacity and Specification - Diesel..............................467
Rear Axle - 10.5................................................... 467
Rear Axle - 10.8.................................................. 468
Rear Axle - 11.8 .................................................. 468
Rear Axle Fluid Capacity and Specification - Gasoline........................469
Rear Axle - 10.5.................................................. 469
Rear Axle - 10.8................................................... 470
Rear Axle - 11.8 ................................................... 470
Rear Axle - 11.8 (With Heavy Duty Tow Option)............................................................... 471
Rear Axle
..........................................................221
Rear Occupant Alert System Audible Warnings.......................................................163
Rear Occupant Alert System Indicators - Vehicles With: SYNC 3..........................163
Rear Occupant Alert System Indicators - Vehicles With: SYNC..............................163
Rear Occupant Alert System Limitations...................................................162 Rear Occupant Alert System
Precautions..................................................162
Rear Occupant Alert System...................162
Rear Parking Aid
...........................................234
Obstacle Distance Indicator.......................... 235
Rear Seats
.......................................................158
Folding Up the Rear Seat Cushion ..............158
Rear Under Seat Storage................................. 159
Returning the Seat to the Seating Position.............................................................. 159
Rear View Camera
.......................................235
Camera Guidelines............................................ 236
Obstacle Distance Indicator........................... 237
Rear Camera Delay............................................ 237
Using the Rear View Camera System........236
Rear View Camera See: Rear View Camera................................... 235
Recommended Towing Weights...........300 Calculating the Maximum Loaded Trailer
Weight for Your Vehicle.............................. 304
Refueling - Diesel
.........................................190
Dual Fuel Tanks................................................... 192
Fueling Tips............................................................ 191
Refueling................................................................. 191
Refueling - Gasoline
....................................189
Fuel Filler Cap...................................................... 190
Remote Control..............................................55 Car Finder............................................................... 60
Integrated Keyhead Transmitter..................... 55
Intelligent Access Key.........................................56
Memory Feature................................................... 59
Replacing the Battery......................................... 57
Sounding the Panic Alarm............................... 60
Remotely Starting the Engine
.................140
Remotely Stopping the Engine................141
Remote Start Limitations.........................140
Remote Start Remote Control Indicators.......................................................141
Remote Control Feedback............................... 141
Remote Start
.................................................140
Remote Start Settings....................................... 141
Remote Start Settings
.................................141
Setting the Remote Start Duration..............142
Switching Climate Control Auto Mode On
and Off................................................................ 141
Switching Climate Control Last Settings On and Off......................................................... 141
657
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Index