You can check the fluid without driving if the
ambient temperature is above 10°C (50°F). However,
if fluid is added at this time, an overfill condition
could result when the vehicle reaches normal
operating temperature.
The transmission fluid
should be in this range
if at normal operating
temperature (66°C-77°C [150°F-170°F]).
The transmission fluid
should be in this range
if at ambient
temperature (10°C-35°C [50°F-95°F]).
High fluid level
Fluid levels above the
safe range may result
in transmission failure.
An overfill condition of transmission fluid may cause
shift and/or engagement concerns and/or possible
damage.
High fluid levels can be caused by an overheating
condition.
Adjusting automatic transmission fluid levels
Before adding any fluid, make sure the correct type
is used. The type of fluid used is normally indicated
on the dipstick and also in theLubricant
specificationssection in this chapter.
Use of a non-approved automatic transmission
fluid may cause internal transmission
component damage.
If necessary, add fluid in 250 ml (1/2 pint)
increments through the filler tube until the level is
correct.
If an overfill occurs,
excess fluid should be
removed by a qualified
technician.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
198
Fluid Ford Part
NameApplication Capacity
Engine
coolant
1Motorcraft
Premium
Gold Engine
Coolant
(yellow-
colored)OHV V6
engine11.2L
(11.8 quarts)
4.6L SOHC
V8 engine13.3L
(14.1 quarts)
4.6L 4v V8
(Mach 1)
with
Automatic
Transmission15.2L
(16.1 quarts)
4.6L 4v V8
(Mach 1)
with Manual
Transmission15.2L
(16.1 quarts)
Power
steering fluidMotorcraft
MERCON
AT FOHV V6
engineKeep in
FULL HOT
range on
dipstick
4.6L SOHC
V8/4.6L 4v V8
(Mach 1)
engineFill to
between MIN
and MAX
lines on
reservoir
Rear axle
lubricant
2Motorcraft
SAE 80W-90
Premium
Rear Axle
Lubricant7 .5 inch axle 1.5L
(3.25 pints)
Motorcraft
SAE 75W-140
Synthetic
Rear Axle
Lubricant8.8 inch axle 2.0L
(4.25 pints)
Fuel tank N/A All 59.4L
(15.7 gallons)
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
216
Fluid Ford Part
NameApplication Capacity
Transmission
fluid
(4R70/75
E-W)
3
Motorcraft
MERCONV
AT FAutomatic
with OHV V6
engine13.1L
(13.9 quarts)
4
Automatic
with 4.6L
SOHC
V8/4.6L 4v V8
(Mach 1)
engine12.0L
(12.8 quarts)
4
Motorcraft
MERCON
AT FManual with
OHV V6
engine2.6L
(5.6 pints)5
Motorcraft
MERCON
AT FManual with
4.6L SOHC
V8/4.6L 4v V8
(Mach 1)
engine3.7L
(7.8 pints)5
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll 3.8L
(4.0 quarts)
1Add the coolant type originally equipped in your
vehicle.
2Rear axle lubricants do not need to be checked or
changed unless a leak is suspected, service is
required or the axle assembly has been submerged
in water. The axle lubricant should be changed any
time the rear axle has been submerged in water. Fill
6 mm to 14 mm (1/4 inch to 9/16 inch) below
bottom of fill hole. Add 118 ml (4 oz.) of Additive
Friction Modifier XL-3 or equivalent meeting Ford
specification EST-M2C118–A for complete refill of
Traction-Lok axles.
3Ensure the correct automatic transmission fluid is
used. Transmission fluid requirements are indicated
on the dipstick or on the dipstick handle. MERCON
and MERCONV are not interchangeable. DO NOT
mix MERCONand MERCONV. Refer to your
scheduled maintenance guide to determine the
correct service interval.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
217
Item Ford part
nameFord part
numberFord
specification
Engine oil Motorcraft
SAE 5W-20
Super
Premium
Motor Oil
(US)
Motorcraft
SAE 5W-20
Super
Premium
Motor Oil
(Canada)XO-5W20-QSP
(US)
CXO-5W20
–LSP12
(Canada)
WSS-M2C153-H
with API
Certification
Mark
Lock
cylindersPenetrating
and Lock
LubricantMotorcraft
XL-1none
Power
steering fluid
and
convertible
top fluid (if
equipped)Motorcraft
MERCON
AT FXT-2-QMMERCON
Rear Axle
LubricantMotorcraft
SAE 80W-90
Premium
Rear Axle
LubricantXY-80W90-QLWSP-M2C197-A
Motorcraft
SAE 75W-140
Synthetic
Rear Axle
Lubricant
1
XY-75W140-QLWSP-M2C192-A
Automatic
transmission
fluid
(4R70/75
E-W)Motorcraft
MERCONV
AT F
2
XT-5-QMMERCONV
OHV V6
engine -
Manual
transmission
fluidMotorcraft
MERCON
AT FXT-2-QDXMERCON
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
219
Item Ford part
nameFord part
numberFord
specification
4.6L - Manual
transmission
fluidMotorcraft
MERCON
AT FXT-2–QM
MERCON
Disc brake
caliper railsMotorcraft
Silicone
Brake Caliper
Grease and
Dielectric
CompoundXG-3ESE-M1C171-A
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateZC-32–AWSB-M8B16
–A2
1Add 118 ml (4 oz.) of Additive Friction Modifier
XL-3 or equivalent meeting Ford specification
EST-M2C118-A for complete refill of Traction-Lok
axles.
Ford design rear axles contain a synthetic lubricant
that does not require changing unless the axle has
been submerged in water.
2Ensure the correct automatic transmission fluid is
used. Transmission fluid requirements are indicated
on the dipstick or on the dipstick handle. MERCON
and MERCONV are not interchangeable. DO NOT
mix MERCONand MERCONV. Refer to your
scheduled maintenance guide to determine the
correct service interval.
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
220
A
Air bag supplemental
restraint system .. 79–80
and child safety
seats ......................... 81
description .............. 80
disposal .................... 84
driver air bag .......... 82
indicator light ......... 83
operation ................. 82
passenger air bag ... 82
Air cleaner filter ..... 215
Antifreeze (see
Engine coolant) ...... 174
Anti-lock brake system
(see Brakes) .... 104–105
Audio system
(see Radio) .... 18, 20, 25
Automatic
transmission ............ 108
driving an automatic
overdrive ............... 111
fluid, adding .......... 196
fluid, checking ...... 196
fluid, refill
capacities ............... 215
fluid,
specification .......... 221
Auxiliary power
point ........................... 45
Axle
lubricant
specifications. 218, 221
refill capacities ...... 215
traction lok ............ 108
B
Battery ..................... 171acid, treating
emergencies .......... 171
jumping a disabled
battery ................... 136
maintenance-free .. 171
replacement,
specifications ........ 215
servicing ................ 171
BeltMinder ................. 74
Brakes .............. 104–105
anti-lock ......... 104–105
anti-lock brake
system (ABS)
warning light ......... 104
fluid, checking and
adding .................... 196
fluid, refill
capacities ............... 215
fluid,
specifications. 218, 221
lubricant
specifications 218, 221
parking .................. 106
shift interlock ........ 108
Bulbs .......................... 38
C
Capacities for
refilling fluids .......... 215
Cargo net ................... 44
Cassette tape
player ................... 18, 25
CD-single premium ... 20
Cell phone use .......... 49
Child safety
restraints ................... 85
child safety belts .... 85
Child safety seats ...... 88
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
228
attaching with
tether straps ........... 93
in front seat ............ 90
in rear seat .............. 90
Cleaning your vehicle
engine
compartment ......... 155
instrument panel .. 157
interior ................... 158
plastic parts .......... 156
safety belts ............ 158
washing .................. 153
waxing ................... 153
wheels .................... 154
wiper blades .......... 157
Clock adjust
6-CD in dash ........... 30
MACH MP3 ............. 23
Clutch
adjusting ................ 196
operation while
driving ................... 114
recommended
shift speeds ........... 115
Console ...................... 49
Controls
power seat ............... 65
Convertible ................ 50
cleaning ................. 157
installation of the
boot .......................... 51
lowering the
convertible top ........ 50
raising the
convertible top ........ 52
Coolant
checking and
adding .................... 174
refill
capacities ....... 180, 215specifications. 218, 221
Cruise control (see
Speed control) .......... 46
Customer
Assistance ................ 122
Ford accessories
for your vehicle .... 159
Ford Extended
Service Plan .......... 144
Getting assistance
outside the U.S.
and Canada ........... 149
Getting roadside
assistance .............. 122
Getting the
service you need .. 142
Ordering additional
owner’s literature . 150
The Dispute
Settlement Board . 145
Utilizing the
Mediation/Arbitration
Program ................. 149
D
Daytime running lamps
(see Lamps) .............. 35
Dipstick
automatic
transmission fluid . 196
engine oil ............... 167
Doors
lubricant
specifications ........ 218
Driving under
special conditions ... 113
through water ....... 116
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
229
Speed control ............ 46
Starting your
vehicle ........ 99–100, 103jump starting ........ 136
Steering wheel tilting ....................... 44
T
Tilt steering wheel .... 44
Tires ................. 200–201 changing 130–132, 135
snow tires and
chains .................... 214
tire grades ............. 201
treadwear .............. 201
Towing ..................... 120 recreational
towing .................... 120
trailer towing ........ 120
wrecker .................. 141
Traction control ...... 107
Traction-lok rear
axle .......................... 108
Transmission automatic
operation ............... 108
brake-shift interlock
(BSI) ...................... 108
fluid, checking
and adding
(automatic) ........... 196
fluid, checking and
adding (manual) ... 199 fluid, refill
capacities ............... 215
lubricant
specifications. 218, 221
manual operation .. 114
Trunk ......................... 54 remote release .. 50, 57
Turn signal ................ 38
V
Vehicle dimensions . 221
Vehicle Identification
Number (VIN) ......... 222
Vehicle loading ........ 117
Ventilating your
vehicle ...................... 104
W
Warning lights
(see Lights) ............... 10
Washer fluid ............ 167
Water, Driving
through .................... 116
Windows power ....................... 45
Windshield washer
fluid and wipers ........ 43 checking and
adding fluid ........... 167
replacing wiper
blades ...................... 43
Wrecker towing ....... 141
2004 Mustang (mus)
Owners Guide (post-2002-fmt)
USA English (fus)
Index
233