2021 FORD MUSTANG Fuel

•
Under normal operating conditions, a
message appears in the information
display to indicate the regular oil
change interval.
• Under severe operating conditions, the
oil change interval may reduce, and the
message interval may adjust.
High performance vehicles can be driven
in such a way that may lead to higher oil
consumption (this includes extended time
at high engine speeds, high loads, engine
braking, hard cornering maneuvers, and
track use). Under these conditions, oil
consumption of approximately 1 quart per
500 miles (1 liter per 800 km) is possible.
As a result, the engine oil level needs to be
checked at every refueling and adjusted to
maintain proper level to avoid engine
damage.
Note: Oil level should not exceed the
maximum mark on the indicator. See
Engine Oil Check (page 261).
When the oil change message appears in
the information display, it is time for an oil
change. Make sure you perform the oil
change within two weeks or
500 mi
(800 km) of the message appearing. Make
sure you reset the Intelligent Oil-Life
Monitor after each oil change. See
Oil
Change Indicator Reset (page 261).
If your information display resets
prematurely or becomes inoperative, you
should perform the oil change interval at
six months or
5,000 mi (8,000 km) from
your last oil change. Never exceed one year
or
10,000 mi (16,000 km) between oil
change intervals.
Your vehicle is very sophisticated and built
with multiple, complex, performance
systems. Every manufacturer develops
these systems using different
specifications and performance features.
That is why it is important to rely upon your
dealership to properly diagnose and repair
your vehicle. Ford Motor Company has recommended
maintenance intervals for various parts
and component systems based upon
engineering testing. Ford Motor Company
relies upon this testing to determine the
most appropriate mileage for replacement
of oils and fluids to protect your vehicle at
the lowest overall cost to you and
recommends against maintenance
schedules that deviate from the scheduled
maintenance information.
We strongly recommend the use of only
genuine Ford, Motorcraft or
Ford-authorized re-manufactured
replacement parts engineered for your
vehicle.
Additives and Chemicals
This owner's manual and the Ford
Workshop Manual list the recommended
additives and chemicals for your vehicle.
We do not recommend using chemicals or
additives not approved by us as part of
your vehicle
’s normal maintenance. Please
consult your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a
normal operating characteristic and, by
itself, does not necessarily indicate a
concern or that the fluid needs to be
changed. However, a qualified expert, such
as the factory-trained technicians at your
dealership, should inspect discolored fluids
that also show signs of overheating or
foreign material contamination
immediately.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Make sure to change your vehicle
’s oils and
fluids at the specified intervals or in
conjunction with a repair. Flushing is a
viable way to change fluid for many vehicle
sub-systems during scheduled
maintenance. It is critical that systems are
flushed only with new fluid that is the same
as that required to fill and operate the system or using a Ford-approved flushing
chemical.
Owner Checks and Services
Make sure you perform the following basic
maintenance checks and inspections every
month or at six-month intervals.Check every month
Engine oil level.
For severe use, high engine speed and engine loads, engine braking and track use, check engine oil level every fuel fill-up.
Function of all interior and exterior lights.
Tires, including spare, for wear and proper pressure. Windshield washer fluid level. Check every six months
Battery connections. Clean if necessary.
Body and door drain holes for obstructions. Clean if necessary. Cooling system fluid level and coolant strength.
Door weatherstrips for wear. Lubricate if necessary.
Hinges, latches and outside locks for proper operation. Lubricate if necessary. Parking brake for proper operation.
Seatbelts and seat latches for wear and function.
Safety warning lamps operation for brake, ABS, airbag and seatbelt.
Washer spray and wiper operation. Clean or replace blades as necessary.
443
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Operating in Dusty or Sandy Conditions Such as Unpaved or Dusty Roads
Change engine oil and filter. 1
Every 5,000 mi (8,000 km)
or six months
Change manual transmission fluid.
Every
50,000 mi
(80,000 km)
1 Reset your Intelligent Oil-Life Monitor after each engine oil and filter change. Exclusive Use of E85 - Flex Fuel Vehicles Only
If ran exclusively on E85, fill the fuel tank full of regular
unleaded fuel.
Every oil change interval
Exceptions
There are several exceptions to the Normal
Schedule:
Axle Maintenance
Change the axle fluid anytime an axle is
submerged in water.
If you receive an axle overtemperature
warning message in the information
display and a wrench warning indicator
appears, you should change the rear axle
fluid at the next convenient time. The
wrench warning indicator turns off when
you switch off your vehicle.
Timing Chain
If you use your vehicle extensively at a
racetrack or at high rpm, it is possible to
exceed the service life of the engine timing
chain. A wrench indicator light will
illuminate when it is time for you to replace
your chain. See an authorized dealer. 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 (4,800 km).
If the available API SM or SN oils are not
available, then the oil change interval is
1,800 mi (2,900 km)
.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

ELECTROMAGNETIC
COMPATIBILITY
WARNING: Do not place objects
or mount equipment on or near the
airbag cover, on the side of the front or
rear seatbacks, or in areas that may
come into contact with a deploying
airbag. Failure to follow these
instructions may increase the risk of
personal injury in the event of a crash. WARNING: Do not fasten antenna
cables to vehicle wiring, fuel pipes and
brake pipes. WARNING:
Keep antenna and
power cables at least 4 in (10 cm) from
any electronic modules and airbags. Note:
We test and certify your vehicle to
meet electromagnetic compatibility
legislation. It is your responsibility to make
sure that any equipment an authorized
dealer installs on your vehicle complies with
applicable local legislation and other
requirements. Installation of some
aftermarket electronic devices could
degrade the performance of vehicle
functions, which use radio frequency signals
such as broadcast radio receiver, tire
pressure monitoring system, push button
start, Bluetooth®
connectivity or satellite
navigation.
Note: Any radio frequency transmitter
equipment in your vehicle (such as cellular
telephones and amateur radio transmitters)
must keep to the parameters in the
following illustrations and table. We do not
provide any other special provisions or
conditions for installations or use.
Car/SUV 483
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Switching Maximum Air Conditioning On
and Off............................................................... 129
Switching Maximum Defrost On and Off........................................................................\
129
Switching Recirculated Air On and Off....................................................................... 130
Switching the Air Conditioning On and Off........................................................................\
129
Switching the Climate Control On and Off........................................................................\
129
Automatic High Beam Control.................84
Automatic High Beam Control Indicators.......................................................84
Automatic Transmission...........................165
Automatic Transmission Adaptive
Learning............................................................ 168
Brake-Shift Interlock.......................................... 167
If Your Vehicle Gets Stuck in Mud or Snow.................................................................. 168
SelectShift Automatic ™
Transmission................................................... 166
Understanding the Positions of Your Automatic Transmission............................ 166
Automatic Transmission Fluid Check............................................................269
Autowipers........................................................78
Auxiliary Power Points................................145 12 Volt DC Power Point..................................... 145
Locations............................................................... 145
B
Battery See: Changing the 12V Battery..................... 270
Blind Spot Information System..............196 ........................................................................\
........... 197
Switching the System On and Off...............198
System Errors....................................................... 198
Using the Blind Spot Information System............................................................... 197
BLIS See: Blind Spot Information System..........196
Body Styling Kits.........................................298
Bonnet Lock See: Opening and Closing the Hood..........256
Booster Seats
..................................................35
Types of Booster Seats...................................... 36Brake Fluid Check........................................269
Brake Fluid Service Interval............................ 270
Brakes.................................................................171 General Information............................................ 171
Brake System Specifications - Mach 1........................................................................\
337
Breaking-In.....................................................230 Ground Clearance............................................. 230
Bulb Specification Chart..........................359
C
Canceling the Set Speed...........................185
Capacities and Specifications - 2.3L EcoBoost™.................................................343
Air Conditioning System................................. 344
Alternative Engine Oil for Extremely Cold Climates............................................................ 347
Automatic Transmission................................ 344
Engine Coolant................................................... 345
Engine Oil 2.3L EcoBoost Base.................... 346
Engine Oil 2.3L EcoBoost High Output.............................................................. 348
Fuel Tank.............................................................. 349
Grease.................................................................... 349
Hydraulic Brake System.................................. 350
Locks...................................................................... 350
Manual Transmission....................................... 345
Rear Axle............................................................... 350
Washer Reservoir................................................ 351
Capacities and Specifications - 5.0L.................................................................351
Air Conditioning System.................................. 352
Alternative Engine Oil for Extremely Cold Climates........................................................... 355
Automatic Transmission................................. 352
Engine Coolant................................................... 354
Engine Oil.............................................................. 355
Fuel Tank.............................................................. 356
Grease.................................................................... 356
Hydraulic Brake System................................... 357
Locks....................................................................... 357
Manual Transmission - 3160......................... 354
Manual Transmission - MT82....................... 353
Rear Axle............................................................... 357
Washer Reservoir............................................... 358
Capacities and Specifications................335
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Index

F
Fastening the Seatbelts...............................41
Seatbelt Locking Modes.................................... 43
Using Seatbelts During Pregnancy................42
Flat Tire See: Changing a Road Wheel....................... 328
Flat Tire Inflation See: Tire Sealant and Inflator Kit................299
Floor Mats........................................................231
Fog Lamps - Front See: Front Fog Lamps........................................ 82
Ford Credit.........................................................19 US Only..................................................................... 19
Ford Protect
...................................................439
Ford Protect Extended Service Plan
(CANADA ONLY).......................................... 440
Ford Protect Extended Service Plans (U.S. Only).................................................................. 439
Front Fog Lamps
............................................82
Front Fog Lamp Indicator................................. 83
Switching the Front Fog Lamps On or Off........................................................................\
. 82
Front Passenger Sensing System............50
Fuel and Refueling.......................................152
Fuel Consumption
.......................................158
Advertised Capacity.......................................... 158
Calculating Fuel Economy.............................. 159
Filling the Fuel Tank........................................... 159
Fuel Filler Funnel Location........................154
Fuel Filter.........................................................274
Fuel Quality
.....................................................153
Choosing the Right Fuel................................... 153
Fuel Quality - Mach 1...................................152 Choosing the Right Fuel................................... 152
Fuel Shutoff
...................................................233
Fuses................................................................245
Fuse Specification Chart..........................245
Passenger Compartment Fuse Panel.........251
Power Distribution Box.................................... 245
G
Garage Door Opener....................................141
Garage Door Opener Limitations
............141
Garage Door Opener Precautions...........141 Garage Door Opener Radio
Frequencies.................................................144
FCC and RSS-210 Industry Canada Compliance..................................................... 144
Gauges - Mach 1.............................................90 Oil Pressure Gauge.............................................. 90
Vacuum Gauge..................................................... 90
Gauges - Vehicles With: 12.3 Inch Instrument Cluster Display
Screen.............................................................90
Engine Coolant Temperature Gauge.............91
Fuel Gauge............................................................... 91
Gauge Package..................................................... 92
Information Bar...................................................... 91
Information Display.............................................. 91
Gauges - Vehicles With: 4.2 Inch Instrument Cluster Display
Screen..............................................................92
Engine Coolant Temperature Gauge............93
Fuel Gauge.............................................................. 93
Gauge Package..................................................... 94
Information Bar..................................................... 93
Information Display............................................. 93
Gearbox See: Transmission.............................................. 164
General Information on Radio Frequencies...................................................58
Intelligent Access................................................. 58
General Maintenance Information
........441
Multi-Point Inspection..................................... 444
Owner Checks and Services.......................... 443
Protecting Your Investment............................ 441
Why Maintain Your Vehicle?.......................... 441
Why Maintain Your Vehicle at Your Dealership?...................................................... 441
Getting Assistance Outside the U.S. and Canada..........................................................241
Getting the Services You Need...............238 Away From Home.............................................. 238
Glasses Holder
..............................................146
Global Opening..............................................86 Opening the Windows........................................ 87
H
Handbrake See: Parking Brake.............................................. 172
Hazard Flashers
............................................233
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Index

Headlamp Adjusting
See: Adjusting the Headlamps...................... 272
Headlamp Exit Delay.....................................81
Headrest See: Head Restraints......................................... 134
Head Restraints.............................................134 Adjusting the Head Restraint......................... 135
Front Seat Non-Adjustable Head Restraints ........................................................................\
...... 135
Tilting Head Restraints .................................... 136
Heated Exterior Mirrors...............................132
Heated Rear Window..................................132
Heating See: Climate Control.......................................... 127
Hill Start Assist
..............................................173
Switching the System On and Off................173
Using Hill Start Assist........................................ 173
Hints on Controlling the Interior Climate - Vehicles With: Automatic
Temperature Control
.................................131
Defogging the Side Windows in Cold
Weather............................................................. 132
General Hints......................................................... 131
Quickly Cooling the Interior.............................. 131
Quickly Heating the Interior............................. 131
Recommended Settings for Cooling............131
Recommended Settings for Heating............131
Hints on Controlling the Interior Climate - Vehicles With: Manual Temperature
Control...........................................................130
Defogging the Side Windows in Cold Weather.............................................................. 131
General Hints....................................................... 130
Quickly Cooling the Interior............................ 130
Quickly Heating the Interior............................ 130
Recommended Settings for Cooling..........130
Recommended Settings for Heating..........130
Vehicle Stationary for Extended Periods During Extreme High Ambient
Temperatures.................................................. 130
Hints on Driving With Anti-Lock Brakes..............................................................171
Hood Lock See: Opening and Closing the Hood..........256
Horn
......................................................................77
How Does the Garage Door Opener Work................................................................141 I
In California (U.S. Only)
............................239
Information Display Control - Vehicles With: SYNC 3.................................................76
Quick Action Menus............................................. 77
Information Display Control - Vehicles With: SYNC....................................................76
Information Displays....................................99 General Information - Mach 1.......................... 99
General Information - Vehicles With: 12.3 Inch Instrument Cluster Display
Screen............................................................... 109
General Information - Vehicles With: 4.2 Inch Instrument Cluster Display
Screen................................................................ 103
Information Messages
.................................113
Adaptive Cruise Control.................................... 113
Airbag....................................................................... 114
Alarm........................................................................\
114
Battery and Charging System......................... 114
Blind Spot Information and Cross Traffic Alert System..................................................... 115
Doors and Locks.................................................. 116
Drive Control.......................................................... 116
Electronic Stability Control.............................. 116
Engine...................................................................... 116
Exhaust Mode........................................................ 117
Fuel........................................................................\
.... 117
Hill Start Assist...................................................... 117
Keys and Passive Key.......................................... 117
Maintenance......................................................... 118
MyKey....................................................................... 119
Park Aid................................................................... 119
Park Brake............................................................. 120
Pre-Collision Assist............................................ 120
Rear Axle................................................................ 120
Remote Start........................................................ 120
Seats........................................................................\
. 121
Starting System ................................................... 121
Steering System.................................................. 122
Suspension System........................................... 122
Tire Mobility Kit.................................................... 122
Tire Pressure Monitoring System.................. 123
Traction Control................................................... 123
Transmission.........................................................123
Installing Child Restraints - Mach 1..........27 Rear Seat Delete................................................... 27
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Index

Power Seats....................................................137
Power Lumbar...................................................... 137
Power Steering Fluid Check
.....................270
Power Windows.............................................86
Accessory Delay................................................... 86
Bounce-Back......................................................... 86
One-Touch Down................................................ 86
One-Touch Up...................................................... 86
Pre-Collision Assist
.....................................202
Adjusting Pre-Collision Assist
Settings............................................................ 204
Blocked Sensors................................................ 204
Distance Indication and Alert....................... 203
Using the Pre-Collision Assist System.............................................................. 203
Programming a MyKey
................................64
Programming the Garage Door Opener to Your Garage Door Opener
Motor..............................................................142
Programming the Garage Door Opener to Your Gate Opener Motor
....................143
Gate Operator / Canadian
Programming.................................................. 143
Programming the Garage Door Opener to Your Hand-Held Transmitter............142
Protecting the Environment.......................22
Puncture See: Changing a Road Wheel....................... 328
R
Radio Frequency Certification Labels
.............................................................451
Blind Spot Information System
Sensors.............................................................. 451
Body Control Module........................................ 457
Cruise Control Module..................................... 459
Garage Door Opener........................................ 463
Keys and Remote Controls............................ 463
Radio Transceiver Module............................. 469
SYNC....................................................................... 473
Tire Pressure Monitoring System Sensors.............................................................. 477
Rear Axle..........................................................170
Rear Parking Aid............................................179 Object Distance Indicator............................... 180
Rear Seats.......................................................139 Accessing the Rear Seats................................ 139Second Row Split-Folding Rear Seat ........139
Rear View Camera.......................................180 Using the Rear View Camera System..........181
Rear View Camera See: Rear View Camera................................... 180
Recommended Towing Weights............219
Reduced Engine Performance
................229
Reduced Vehicle Top Speed.......................... 229
Refueling..........................................................156 Refueling System Overview........................... 156
Refueling System Warning............................. 158
Refueling Your Vehicle...................................... 156
Remote Control..............................................58 Car Finder................................................................ 62
Intelligent Access Key........................................ 58
Memory Feature................................................... 62
Replacing the Battery........................................ 60
Sounding the Panic Alarm................................ 62
Using the Key Blade............................................ 59
Remotely Starting the Engine..................124
Remotely Stopping the Engine................125
Remote Start Limitations..........................124
Remote Start Remote Control Indicators......................................................125
Remote Control Feedback.............................. 125
Remote Start
..................................................124
Remote Start Settings...................................... 125
Remote Start Settings................................125 Setting the Remote Start Duration..............126
Switching Climate Control Auto Mode On
and Off............................................................... 125
Switching Climate Control Last Settings On and Off........................................................ 125
Switching the Heated Seat Settings On and Off........................................................................\
125
Switching the Heated Steering Wheel Settings On and Off...................................... 126
Repairing Minor Paint Damage..............296
Replacement Parts Recommendation........................................19
Collision Repairs.................................................... 19
Scheduled Maintenance and Mechanical Repairs................................................................. 19
Warranty on Replacement Parts..................... 19
Replacing a Lost Key or Remote Control.............................................................62
Replacing the Cabin Air Filter...................133
522
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Index