Page 2 of 240
Seating and Safety Restraints 64
Seating 64
Safety restraints 68
Air bags 79
Child restraints 84
Driving 99
Starting 99
Brakes 104
Traction control 107
Transmission operation 108
Vehicle loading 117
Trailer towing 120
Roadside Emergencies 122
Getting roadside assistance 122
Hazard flasher switch 124
Fuel pump shut-off switch 124
Fuses and relays 125
Changing tires 130
Jump starting 136
Wrecker towing 141
Customer Assistance 142
Reporting safety defects (U.S. only) 152
Cleaning 153
Maintenance and Specifications 161
Engine compartment 164
Engine oil 167
Battery 171
Fuel information 182
Part numbers 215
Refill capacities 215
Lubricant specifications 218
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Table of Contents
2
Page 164 of 240
IDENTIFYING COMPONENTS IN THE ENGINE
COMPARTMENT
OHV V6 engine
1. Engine oil filler cap
2. Engine oil dipstick
3. Brake fluid reservoir
4. Power distribution box
5. Windshield washer fluid reservoir
6. Battery
7. Power steering fluid reservoir
8. Engine coolant reservoir
9. Air filter assembly
10. Automatic transmission fluid dipstick (if
equipped)
6
1023
4
5
789
1
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
164
Page 165 of 240
4.6L SOHC V8 engine
1. Engine oil dipstick
2. Brake fluid reservoir
3. Power distribution box
4. Windshield washer fluid reservoir
5. Battery
6. Engine coolant reservoir
7. Power steering fluid reservoir
8. Engine oil filler cap
9. Air filter assembly
10. Automatic transmission fluid dipstick (if
equipped)
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
165
Page 166 of 240
4.6L 4V V8 (Mach 1) engine
1. Engine oil filler cap
2. Brake fluid reservoir
3. Engine oil dipstick
4. Power distribution box
5. Windshield washer fluid reservoir
6. Battery
7. Engine coolant reservoir
8. Power steering fluid reservoir
9. Air filter assembly
10. Automatic transmission fluid dipstick (if
equipped)
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
166
Page 167 of 240

WINDSHIELD WASHER FLUID
Add fluid to fill the
reservoir if the level is
low. In very cold
weather, do not fill the
reservoir completely.
Only use a washer fluid
that meets Ford
specification
WSB-M8B16–A2. Refer toLubricant specifications
in this chapter.
State or local regulations on volatile organic
compounds may restrict the use of methanol, a
common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze
agents should be used only if they provide cold
weather protection without damaging the vehicle’s
paint finish, wiper blades or washer system.
If you operate your vehicle in temperatures
below 4.5°C (40°F), use washer fluid with
antifreeze protection. Failure to use washer fluid
with antifreeze protection in cold weather could
result in impaired windshield vision and increase
the risk of injury or accident.
Note:Do not put washer fluid in the engine coolant
reservoir. Washer fluid placed in the cooling system
may harm engine and cooling system components.
ENGINE OIL
Checking the engine oil
Refer to the scheduled maintenance guide for the
appropriate intervals for checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait 5 to 10 minutes for
the oil to drain into the oil pan.
3. Set the parking brake and ensure the gearshift is
securely latched in P (Park) (automatic
transmissions) or 1 (First) (manual transmissions).
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
167
Page 218 of 240

4Indicates only approximate dry-fill capacity. Some
applications may vary based on cooler size and if
equipped with an in-tank cooler. The amount of
transmission fluid and fluid level should be set by
the indication on the dipstick’s normal operating
range.
5Service refill capacity is determined by filling the
transmission to the bottom of the filler hole with the
vehicle on a level surface.
6Use of synthetic or synthetic blend motor oil is not
mandatory. Engine oil need only meet the
requirements of Ford specification WSS-M2C153–H
and the API Certification mark.
LUBRICANT SPECIFICATIONS
Item Ford part
nameFord part
numberFord
specification
Brake fluid Motorcraft
High
Performance
DOT 3 Motor
Vehicle Brake
FluidPM-1
ESA-M6C25-A
and DOT 3
Door
weatherstripsSilicone
LubricantXL-6ESR-M13P4-A
Door latch,
hood latch,
auxiliary
hood latch,
door hinges,
striker plates,
seat tracks
and fuel filler
door hingeMulti-Purpose
GreaseXG-4 or XL-5ESR-M1C159-A
or
ESB-M1C93-B
Engine
coolantMotorcraft
Premium
Gold Engine
Coolant
(yellow-
colored)VC-7–AWSS-M97B51
–A1
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
218
Page 219 of 240
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
Page 229 of 240

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