FORD MUSTANG 2021 Owners Manual

Engine Oil 2.3L EcoBoost High
Output An oil that displays this symbol conforms
to current engine, emission system and
fuel economy performance standards of
ILSAC.
We recommend Motorcraft® motor oil for
your vehicle. If Motorcraft® oil is not
available, use motor oils of the
recommended viscosity grade that meet
API SN requirements.
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage not
covered by your vehicle warranty.
Capacities Including the Oil Filter
Variant
6.0 qt (5.67 L)
All.
Materials Specification
Name
WSS-M2C931-C
Motorcraft® SAE 5W-50 Full Synthetic Motor
Oil(U.S.)
Motorcraft® SAE 5W-50 Full Synthetic Motor Oil /
Huile moteur synthétique SAE 5W-50 Motor-
craft®(Canada)
XO-5W50-QGT(U.S. & Canada)
Note: Oil must meet specification
WSS-M2C931-C or use SAE 5W-50 oil that
meet API SN requirements. Alternative Engine Oil for
Extremely Cold Climates
To improve engine cold start performance,
we recommend that you use the following
alternative engine oil in extremely cold
climates, where the ambient temperature
reaches -22.0°F (-30°C) or below.
Materials Specification
Name
WSS-M2C937-A
Engine Oil - SAE 0W-40
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE300448

Fuel Tank
Capacities
Quantity
Variant
15.5 gal (58.5 L)
All.
Grease
Materials Specification
Name
ESB-M1C93-B
Motorcraft® Multi-Purpose Grease Spray(U.S.)
Motorcraft® Multi-Purpose Grease Spray / Graisse
tout usage en aérosol Motorcraft®(Canada)
XL-5-A(U.S. & Canada)
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Hydraulic Brake System
Note:
We recommend using DOT 4 Low
Viscosity (LV) High Performance Brake Fluid
or equivalent meeting WSS-M6C65-A2. Use
of any fluid other than the recommended
fluid could cause reduced brake
performance and not meet our performance
standards. Keep brake fluid clean and dry.
Contamination with dirt, water, petroleum
products or other materials could result in
brake system damage and possible failure.
Materials Specification
Name
WSS-M6C65-A2
Motorcraft® DOT 4 LV High Performance Motor
Vehicle Brake Fluid(U.S.)
Motorcraft® DOT 4 LV High Performance Motor
Vehicle Brake Fluid / Liquide de frein automobile
haute performance DOT 4 LV Motorcraft®(Canada)
PM-20(U.S. & Canada)
Locks
Materials Specification
Name
-
Motorcraft® Penetrating and Lock Lubricant(U.S.)
Motorcraft® Penetrating Fluid / Liquide dégrippant
Motorcraft®(Canada)
XL-1(U.S.)
CXC-51-A(Canada)
Rear Axle
Capacities Quantity
Variant
1.6 qt (1.5 L)1
All.
1 For complete refill of our limited slip axles, add 3.28 fl oz (97 ml) of Additive Friction
Modifier XL-3 or equivalent meeting specification EST-M2C118-A. Include this friction
modifier in the total fluid capacity. Our rear axles contain a synthetic lubricant that does
not require changing unless you submerge the axle in water.
350
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications

Materials
Specification
Name
WSS-M2C942-A
Motorcraft® SAE 75W-85 Premium Synthetic
Hypoid Gear Lubricant(U.S.)
Motorcraft® SAE 75W-85 Premium Synthetic
Hypoid Gear Lubricant / Huile synthétique de haute
qualité pour engrenages hypoïdes SAE 75W-85
Motorcraft®(Canada)
XY-75W85-QL(U.S. & Canada)
EST-M2C118-A
Motorcraft® Additive Friction Modifier(U.S.)
Motorcraft® Additive Friction Modifier / Additif
modificateur de friction Motorcraft®(Canada)
XL-3(U.S.)
CXL-3(Canada)
Washer Reservoir
Capacities Quantity
Variant
Fill as required.
All.
Materials Specification
Name
WSS-M14P19-A
Motorcraft® Premium Windshield Wash Concen-
trate with Bitterant(U.S.)
Motorcraft® Premium Quality Windshield Washer
Fluid / Liquide lave-glace de haute qualité Motor-
craft®(Canada)
ZC-32-B2(U.S.)
CXC-37-F/M(Canada)
CAPACITIES AND
SPECIFICATIONS - 5.0L
Use oil and fluid that meets the defined
specification and viscosity grade. If you do not use oil and fluid that meets
the defined specification and viscosity
grade, it could result in:
•
Component damage not covered by
the vehicle warranty.
• Longer engine cranking periods.
• Increased emission levels.
351
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications

•
Reduced engine performance.
• Reduced fuel economy.
• Reduced brake performance. Air Conditioning System WARNING: The air conditioning
refrigerant system contains refrigerant
under high pressure. Only qualified
personnel should service the air
conditioning refrigerant system. Opening
the air conditioning refrigerant system
can cause personal injury.
Capacities Refrigerant Oil
Refrigerant
Variant
3.38 fl oz (100 ml)
19 oz (0.539 kg)
All.
Materials Specification
Name
WSS-M17B21-A
R-1234yf Refrigerant(U.S.)
R-1234yf Refrigerant / Frigorigène R-1234yf(Canada)
YN-33-A(U.S.)
HS7Z-19B519-BA(Canada)
WSS-M2C300-A2
Motorcraft® R-1234yf Refrigerant PAG Oil(U.S.)
Motorcraft® R-1234yf Refrigerant PAG Oil / Huile
PAG pour frigorigène R-1234yf Motorcraft®(Canada)
YN-35(U.S. & Canada)
Automatic Transmission
Note: Automatic transmissions that require
MERCON® ULV transmission fluid should
only use MERCON® ULV transmission fluid.
The use of any other fluid could cause
transmission damage.
352
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications

Capacities
Quantity
Variant
13.4 qt (12.7 L)1
Base.
13.8 qt (13.1 L)1
Mach 1.
1 Approximate dry fill capacity. Actual amount could vary during fluid changes.
Materials Specification
Name
WSS-M2C949-A, MERCON® ULV
Motorcraft® MERCON® ULV Automatic Transmis-
sion Fluid(U.S.)
Motorcraft® MERCON® ULV Automatic Transmis-
sion Fluid / MERCON® ULV huile pour boîtes auto-
matique Motorcraft®(Canada)
XT-12-QULV(U.S. & Canada)
Manual Transmission - MT82
Capacities Quantity
Variant
2.7 qt (2.6 L)
All.
Materials Specification
Name
WSS-M2C200-D2
Motorcraft® Dual Clutch Transmission Fluid(U.S.)
Motorcraft® Dual Clutch Transmission Fluid / Huile
pour boîtes embrayage double Motor-
craft®(Canada)
XT-11-QDC(U.S. & Canada)
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications

Manual Transmission - 3160
Capacities
Quantity
Variant
3.3 qt (3.1 L)
Mach 1.
Materials Specification
Name
WSS-M2C938-AMERCON® LV,
Motorcraft® MERCON® LV Automatic Transmission
Fluid(U.S.)
Motorcraft® MERCON® LV Automatic Transmission
Fluid / Huile pour boîte automatique MERCON® LV
Motorcraft®(Canada)
XT-10-QLVC(U.S.)
CXT-10-LV6(Canada)
Engine Coolant
Capacities Quantity
Variant
15.2 qt (14.4 L)
With Track Pack.
13.6 qt (12.88 L)
Without Track Pack.
Materials Specification
Name
WSS-M97B57-A2
Motorcraft® Yellow Prediluted Antifreeze/
Coolant(U.S.)
Motorcraft® Yellow Prediluted Antifreeze/Coolant
/ Antigel/liquide de refroidissement prédilué jaune
Motorcraft®(Canada)
VC-13DL-G(U.S.)
CVC-13DL-G(Canada)
354
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications

Engine Oil An oil that displays this symbol conforms
to current engine, emission system and
fuel economy performance standards of
ILSAC.
We recommend Motorcraft® motor oil for
your vehicle. If Motorcraft® oil is not
available, use motor oils of the
recommended viscosity grade that meet
API SP requirements and display the API
Certification Mark for gasoline engines.
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage not
covered by your vehicle warranty.
Capacities Including the Oil Filter
Variant
10.0 qt (9.5 L)
All.
Materials Specification
Name
WSS-M2C961-A1
Motorcraft® SAE 5W-30 Synthetic Blend Motor
Oil(U.S.)
Motorcraft® SAE 5W-30 Super Premium Motor Oil
/ Huile moteur de très haute qualité SAE 5W-30
Motorcraft®(Canada)
XO-5W30-Q1SP(U.S.)
CXO-5W30-LSP6(Canada)
Alternative Engine Oil for
Extremely Cold Climates
To improve engine cold start performance,
we recommend that you use the following
alternative engine oil in extremely cold
climates, where the ambient temperature
reaches -22.0°F (-30°C) or below.
355
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE142732

Materials
Specification
Name
WSS-M2C963-A1
Engine Oil - SAE 0W-30 - Synthetic Blend Fuel Tank
Capacities
Quantity
Variant
16.0 gal (60.55 L)
All.
Grease
Materials Specification
Name
ESB-M1C93-B
Motorcraft® Multi-Purpose Grease Spray(U.S.)
Motorcraft® Multi-Purpose Grease Spray / Graisse
tout usage en aérosol Motorcraft®(Canada)
XL-5-A(U.S. & Canada)
356
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE240523

Hydraulic Brake System
Note:
We recommend using DOT 4 Low
Viscosity (LV) High Performance Brake Fluid
or equivalent meeting WSS-M6C65-A2. Use
of any fluid other than the recommended
fluid could cause reduced brake
performance and not meet our performance
standards. Keep brake fluid clean and dry.
Contamination with dirt, water, petroleum
products or other materials could result in
brake system damage and possible failure.
Materials Specification
Name
WSS-M6C65-A2
Motorcraft® DOT 4 LV High Performance Motor
Vehicle Brake Fluid(U.S.)
Motorcraft® DOT 4 LV High Performance Motor
Vehicle Brake Fluid / Liquide de frein automobile
haute performance DOT 4 LV Motorcraft®(Canada)
PM-20(U.S. & Canada)
Locks
Materials Specification
Name
-
Motorcraft® Penetrating and Lock Lubricant(U.S.)
Motorcraft® Penetrating Fluid / Liquide dégrippant
Motorcraft®(Canada)
XL-1(U.S.)
CXC-51-A(Canada)
Rear Axle
Capacities Quantity
Variant
1.6 qt (1.5 L)1
All.
1 For complete refill of our limited slip axles, add 3.28 fl oz (97 ml) of Additive Friction
Modifier XL-3 or equivalent meeting specification EST-M2C118-A. Include this friction
modifier in the total fluid capacity. Our rear axles contain a synthetic lubricant that does
not require changing unless you submerge the axle in water.
357
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications