2021 FORD F-350 fuel

Rear Occupant Alert System Audible
Warnings .....................................................163
Garage Door Opener
Universal Garage Door Opener ..............
164
Auxiliary Power Points
Auxiliary Power Points ...............................
168
Wireless Accessory Charger ....................
169
Storage Compartments
Center Console ...............................................
171
Overhead Console ........................................
171
Under Seat Storage ......................................
171
Starting and Stopping the Engine
General Information ...................................
174
Ignition Switch ..............................................
174
Keyless Starting ............................................
175
Starting a Gasoline Engine - 6.2L/7.3L ........................................................................\
.
175
Starting a Diesel Engine - 6.7L Diesel ........................................................................\
..
177
Switching Off the Engine - 6.7L Diesel ........................................................................\
.
182
Engine Idle Shutdown ................................
182
Engine Block Heater ...................................
182
Fuel and Refueling
Safety Precautions .....................................
184
Fuel Quality - E85 .......................................
185
Fuel Quality - Gasoline .............................
186
Fuel Quality - Diesel ...................................
187
Running Out of Fuel ...................................
189
Refueling - Gasoline ...................................
189
Refueling - Diesel ........................................
190
Fuel Consumption .......................................
193Engine Emission Control
Emission Law
................................................
194
Catalytic Converter .....................................
195
Selective Catalytic Reductant System - Diesel ............................................................
197
Diesel Particulate Filter ............................
202
Transmission
Automatic Transmission ..........................
207
Power Take-Off ............................................
212
Four-Wheel Drive
Using Four-Wheel Drive ............................
213
Rear Axle
Limited Slip Differential .............................
221
Electronic Locking Differential ................
221
Brakes
General Information ...................................
223
Hints on Driving With Anti-Lock Brakes ........................................................................\
225
Parking Brake ................................................
225
Hill Start Assist ............................................
225
Traction Control
Principle of Operation ................................
227
Using Traction Control ...............................
227
Stability Control
Principle of Operation ...............................
228
Using Stability Control ..............................
229
Trail Control
What Is Trail Control ...................................
231
Switching Trail Control On and Off .......
231
Setting the Trail Control Speed ..............
231
Canceling the Set Speed ..........................
231
Trail Control Indicators ...............................
231
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Table of Contents

Terrain Control
Principle of Operation
...............................232
Using Hill Descent Control ......................
232
Parking Aids
Principle of Operation ...............................
234
Rear Parking Aid ..........................................
234
Rear View Camera ......................................
235
360 Degree Camera ..................................
238
Cruise Control
What Is Cruise Control ..............................
242
Switching Cruise Control On and Off ........................................................................\
242
Setting the Cruise Control Speed .........
242
Canceling the Set Speed .........................
243
Resuming the Set Speed .........................
243
Cruise Control Indicators .........................
243
Using Adaptive Cruise Control ...............
243
Driving Aids
Driver Alert ....................................................
250
Lane Keeping System ................................
251
Blind Spot Information System ............
254
Cross Traffic Alert .......................................
259
Steering ..........................................................
262
Pre-Collision Assist ....................................
264
Drive Control ................................................
268
Load Carrying
Load Carrying Precautions .......................
271
Locating the Safety Compliance Certification Labels ................................
272
What Is the Gross Axle Weight Rating ........................................................................\
.
272
What Is the Gross Vehicle Weight Rating ........................................................................\
.
272
What Is the Maximum Loaded Trailer Weight .........................................................
272
What Is the Gross Combined Weight Rating ..........................................................
273 Calculating Payload
...................................
274
Calculating the Load Limit ......................
274
Pickup Bed
Pickup Bed Anchor Points ........................
277
Pickup Bed Ramps .....................................
279
Towing
Towing a Trailer ...........................................
282
Trailer Reversing Aids ................................
283
Trailer Sway Control ..................................
300
Recommended Towing Weights ..........
300
Essential Towing Checks .........................
305
Towing the Vehicle on Four Wheels ......
314
Driving Hints
Economical Driving ......................................
317
Off-Road Driving ..........................................
317
Breaking-In ....................................................
320
Driving Through Water ..............................
320
Snow Plowing ...............................................
321
Floor Mats ......................................................
323
Roadside Emergencies
Roadside Assistance .................................
325
Hazard Flashers ..........................................
326
Fuel Shutoff ..................................................
326
Jump Starting the Vehicle ........................
327
Post-Crash Alert System .........................
329
Transporting the Vehicle ..........................
329
Towing Points ..............................................
330
Customer Assistance
Getting the Services You Need ..............
332
In California (U.S. Only) ............................
333
The Better Business Bureau (BBB) Auto Line Program (U.S. Only) ....................
334
Utilizing the Mediation/Arbitration Program (Canada Only) ......................
335
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Table of Contents

Getting Assistance Outside the U.S. and
Canada .......................................................335
Ordering Additional Owner's Literature ........................................................................\
337
Reporting Safety Defects (U.S. Only) ........................................................................\
337
Reporting Safety Defects (Canada Only) ........................................................................\
337
Fuses
Fuse Specification Chart .........................
339
Changing a Fuse .........................................
346
Maintenance
General Information ..................................
348
Opening and Closing the Hood .............
348
Under Hood Overview - 6.2L .................
349
Under Hood Overview - 6.7L Diesel .....
350
Under Hood Overview - 7.3L ....................
351
Engine Oil Dipstick - 6.2L .........................
352
Engine Oil Dipstick - 6.7L Diesel ............
352
Engine Oil Dipstick - 7.3L ..........................
352
Engine Oil Check - 6.2L .............................
352
Engine Oil Check - 6.7L Diesel ...............
354
Engine Oil Check - 7.3L .............................
355
Changing the Engine Oil and Oil Filter ........................................................................\
356
Oil Change Indicator Reset .....................
356
Changing the Engine Air Filter - 6.2L ........................................................................\
357
Changing the Engine Air Filter - 6.7L Diesel ..........................................................
358
Changing the Engine Air Filter - 7.3L ....
360
Draining the Fuel Filter Water Trap - 6.7L Diesel ...........................................................
361
Engine Coolant Check - 6.2L .................
364
Engine Coolant Check - 6.7L Diesel .....
368
Engine Coolant Check - 7.3L ....................
371
Automatic Transmission Fluid Check ........................................................................\
376
Transfer Case Fluid Check ........................
377Brake Fluid Check
........................................
377
Power Steering Fluid Check ....................
378
Changing the 12V Battery ........................
379
Adjusting the Headlamps ........................
381
Washer Fluid Check ...................................
382
Fuel Filter - 6.2L/7.3L .................................
382
Checking the Wiper Blades ....................
382
Changing the Wiper Blades ....................
382
Changing a Bulb ..........................................
383
Changing the Engine-Mounted and Diesel Fuel Conditioner Module Fuel
Filters - 6.7L Diesel .................................
386
Spring U-Bolt Check - F-600 ................
389
Vehicle Care
General Information ...................................
391
Cleaning Products .......................................
391
Cleaning the Exterior .................................
392
Waxing ............................................................
393
Cleaning the Engine ...................................
393
Cleaning the Exhaust - 6.7L Diesel ......
394
Cleaning the Windows and Wiper Blades ........................................................................\
394
Cleaning the Interior ..................................
395
Cleaning the Instrument Panel and Instrument Cluster Lens .......................
397
Cleaning Leather Seats ............................
397
Repairing Minor Paint Damage .............
399
Cleaning the Wheels .................................
399
Vehicle Storage ...........................................
399
Wheels and Tires
General Information ..................................
402
Tire Care ........................................................
404
Using Snow Chains ....................................
420
Tire Pressure Monitoring System ...........
421
Changing a Road Wheel ..........................
429
Technical Specifications .........................
440
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Table of Contents

Capacities and Specifications
Engine Specifications - 6.2L
....................441
Engine Specifications - 6.7L Diesel .......
441
Engine Specifications - 7.3L ....................
442
Motorcraft Parts - 6.2L .............................
443
Motorcraft Parts - 6.7L Diesel ................
445
Motorcraft Parts - 7.3L .............................
446
Bulb Specification Chart ..........................
447
Engine Oil Capacity and Specification - 6.2L ..............................................................
449
Engine Oil Capacity and Specification - 6.7L Diesel .................................................
450
Engine Oil Capacity and Specification - 7.3L ...............................................................
453
Cooling System Capacity and Specification - 6.2L ...............................
455
Cooling System Capacity and Specification - 6.7L Diesel ..................
456
Cooling System Capacity and Specification - 7.3L ................................
456
Fuel Tank Capacity - Diesel ....................
457
Fuel Tank Capacity - Gasoline ..............
458
Air Conditioning System Capacity and Specification - 6.2L ...............................
459
Air Conditioning System Capacity and Specification - 6.7L Diesel ..................
460
Air Conditioning System Capacity and Specification - 7.3L .................................
461
Washer Fluid Specification ......................
461
Diesel Exhaust Fluid Capacity and Specification ............................................
462
Automatic Transmission Fluid Capacity and Specification - Diesel ...................
463
Automatic Transmission Fluid Capacity and Specification - Gasoline .............
463
Brake Fluid Specification .........................
465
Transfer Case Fluid Capacity and Specification ............................................
466
Front Axle Fluid Capacity and Specification ............................................
466
Rear Axle Fluid Capacity and Specification - Diesel ............................
467Rear Axle Fluid Capacity and
Specification - Gasoline ......................
469
Hydraulic Power Steering Fluid Capacity and Specification ....................................
472
Vehicle Identification
Vehicle Identification Number ...............
473
Connected Vehicle
Connected Vehicle Requirements ........
474
Connected Vehicle Limitations .............
474
Connecting the Vehicle to a Mobile Network ......................................................
474
Connecting the Vehicle to a Wi-Fi Network ......................................................
474
Connected Vehicle – Troubleshooting - Vehicles With: Modem ..........................
475
Connected Vehicle – Troubleshooting - Vehicles With: SYNC/SYNC 3 ............
476
Vehicle Wi-Fi Hotspot
Creating a Vehicle Wi-Fi Hotspot .........
478
Changing the Vehicle Wi-Fi Hotspot Name or Password ................................
478
Audio System - Vehicles With: SYNC
General Information ..................................
479
Audio Unit ......................................................
479
Digital Radio ..................................................
481
Satellite Radio .............................................
484
USB Port ........................................................
487
Audio System - Vehicles With: SYNC 3
General Information .................................
488
Audio Unit .....................................................
488
Digital Radio .................................................
489
Satellite Radio .............................................
492
USB Port ........................................................
495
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Table of Contents

Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control
Do not open when hot
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
Fasten seatbelt Flammable
Front airbag
Front fog lamps
Fuel pump reset
Fuse compartment
Hazard flashers
Heated rear window
Windshield defrosting system
Interior luggage compartment
release
Jack
Keep out of reach of children
Lighting control
Low tire pressure warning
Maintain correct fluid level
Note operating instructions
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- IntroductionE270480 E139223 E141128 E71340 E71880 E231160 E67017 E161353

Your vehicle has electronic control units
that have data recording functionality and
the ability to permanently or temporarily
store data. This data could include
information on the condition and status of
your vehicle, vehicle maintenance
requirements, events and malfunctions.
The types of data that can be recorded are
described in this section. Some of the data
recorded is stored in event logs or error
logs.
Note:
Error logs are reset following a service
or repair.
Note: We may provide information in
response to requests from law enforcement,
other government authorities and third
parties acting with lawful authority or
through a legal process. Such information
could be used by them in legal proceedings.
Data recorded includes, for example:
• Operating states of system
components, for example, fuel level,
tire pressure and battery charge level.
• Vehicle and component status, for
example, wheel speed, deceleration,
lateral acceleration and seatbelt
status.
• Events or errors in essential systems,
for example, headlamps and brakes.
• System responses to driving situations,
for example, airbag deployment and
stability control.
• Environmental conditions, for example,
temperature.
Some of this data, when used in
combination with other information, for
example, an accident report, damage to a
vehicle or eyewitness statements, could
be associated with a specific person. Service Data
Service data recorders in your vehicle are
capable of collecting and storing
diagnostic information about your vehicle.
This potentially includes information about
the performance or status of various
systems and modules in the vehicle, such
as engine, throttle, steering or brake
systems. In order to properly diagnose and
service your vehicle, Ford Motor Company
(Ford of Canada in Canada), and service
and repair facilities may access or share
among them vehicle diagnostic
information received through a direct
connection to your vehicle when
diagnosing or servicing your vehicle.
Additionally, Ford Motor Company (Ford
of Canada, in Canada) may, where
permitted by law, use vehicle diagnostic
information for vehicle improvement or
with other information we may have about
you, for example, your contact information,
to offer you products or services that may
interest you. Data may be provided to our
service providers such as part suppliers
that may help diagnose malfunctions, and
who are similarly obligated to protect data.
We retain this data only as long as
necessary to perform these functions or to
comply with law. We may provide
information where required in response to
official requests to law enforcement or
other government authorities or third
parties acting with lawful authority or court
order, and such information may be used
in legal proceedings. For U.S. only (if
equipped), if you choose to use connected
apps and services, you consent that certain
diagnostic information may also be
accessed electronically by Ford Motor
Company and Ford authorized service
facilities, and that the diagnostic
information may be used to provide
services to you, personalizing your
experience, troubleshoot, and to improve
products and services and offer you
products and services that may interest
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Introduction

If you connect a cell phone to the system,
the system creates a profile that links to
that cell phone. The cell phone profile
enables more mobile features and efficient
operation. The profile contains, for
example, data from your phonebook, read
and unread text messages and call history,
including history of calls when your cell
phone was not connected to the system.
If you connect a media device, the system
creates and retains a media device index
of supported media content. The system
also records a short diagnostic log of
approximately 10 minutes of all recent
system activity.
The cell phone profile, media device index
and diagnostic log remain in your vehicle
unless you delete them and are generally
accessible only in your vehicle when you
connect your cell phone or media device.
If you no longer plan to use the system or
your vehicle, we recommend you use the
master reset function to erase the stored
information. See Settings (page 543).
System data cannot be accessed without
special equipment and access to your
vehicle's module.
For additional information about our
privacy policy, refer to your local Ford
website.
Note: To find out if your vehicle has
connectivity technology, visit
www .For dC onne c t e d . c om .
Vehicles With an Emergency Call
System
When the emergency call system is active,
it may disclose to emergency services that
your vehicle has been in a crash involving
the deployment of an airbag or activation
of the fuel pump shut-off. Certain versions
or updates to the emergency call system
may also be capable of electronically or
verbally disclosing to emergency services
operators your vehicle location or other details about your vehicle or crash to assist
emergency services operators to provide
the most appropriate emergency services.
If you do not want to disclose this
information, do not activate the emergency
call system.
Note:
You cannot deactivate emergency
call systems that are required by law.
PERCHLORATE
Certain components in your vehicle such
as airbag modules, seatbelt pretensioners
and remote control batteries may contain
perchlorate material. Special handling
may apply for service or vehicle end of life
disposal.
For more information visit: Web Address
www.dtsc.ca.gov/hazard- ouswaste/perchlorate
FORD CREDIT
US Only
Ford Credit offers a full range of financing
and lease plans to help you acquire your
vehicle. If you have financed or leased your
vehicle through Ford Credit, thank you for
your business.
For assistance call 1-800-727-7000, or for
more information about Ford Credit and
access to the online Account Manager tool,
visit www.ford.com/finance.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Introduction

Your vehicle has an OBD Data Link
Connector (DLC) that is used in
conjunction with a diagnostic scan tool for
vehicle diagnostics, repairs and
reprogramming services. Installing an
aftermarket device that uses the DLC
during normal driving for purposes such as
remote insurance company monitoring,
transmission of vehicle data to other
devices or entities, or altering the
performance of the vehicle, may cause
interference with or even damage to
vehicle systems. We do not recommend
or endorse the use of aftermarket plug-in
devices unless approved by Ford. The
vehicle Warranty will not cover damage
caused by an aftermarket plug-in device.
Using your Vehicle With a
Snowplow
More information and guidelines for using
your vehicle with a snowplow are in this
Owner's Manual. See Snow Plowing
(page 321).
Using a Slide-In Camper
For information regarding the use of
slide-in campers, consult the Truck
Camper Loading document supplied with
your vehicle.
Using your Vehicle as an
Ambulance
If your light truck has the Ford Ambulance
Preparation Package, it may be utilized as
an ambulance. We urge ambulance
manufacturers to follow the
recommendations of the Ford Incomplete
Vehicle Manual, Ford Truck Body Builder ’s
Layout Book and the Qualified Vehicle
Modifiers (QVM) Guidelines as well as pertinent supplements. For additional
information, please contact the Truck Body
Builders Advisory Service at
http://www.fleet.ford.com/truckbbas/
and then by selecting Contact Us or by
phone at 1–877
–840–4338.
Use of your Ford light truck as an
ambulance, without the Ford Ambulance
Preparation Package voids the Ford New
Vehicle Limited Warranty and may void
the emissions warranties. In addition,
ambulance usage without the preparation
package could cause high underbody
temperatures, overpressurized fuel and a
risk of spraying fuel which could lead to
fires.
If your vehicle has the Ford Ambulance
Preparation Package, it will be indicated
on the Safety Compliance Certification
Label. The label is on the driver side door
pillar or on the rear edge of the driver door.
You can determine whether the
ambulance manufacturer followed Ford ’s
recommendations by directly contacting
that manufacturer. The Ford Ambulance
Preparation Package is only available on
certain diesel engine equipped vehicles.
Using your Vehicle as a Stationary
Power Source
Information and guidelines for operating a
vehicle with an aftermarket power take-off
system are in this Owner's Manual.
See
Power Take-Off (page 212).
MOBILE COMMUNICATIONS
EQUIPMENT WARNING:
Driving while
distracted can result in loss of vehicle
control, crash and injury. We strongly
recommend that you use extreme
caution when using any device that may
take your focus off the road. Your
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 202008, Third-Printing- Introduction