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 215 of 240

MOTORCRAFT PART NUMBERS
ComponentOHV V6
engine4.6L SOHC
V8 engine4.6L 4v V8
engine
(Mach 1)
Air filter
elementFA-1611 FA-1634 FA-1634
Fuel filter FG-986 FG-986 FG-986
Battery BXT-59 BXT-59 BXT-59
Oil filter FL-400S FL-820S FL-820S
PCV valve EV-152 EV-261 EV- 261
Spark plugs* AGSF-42FM** AGSF-32PM AGSF-32WM
* Refer to Vehicle Emissions Control Information
(VECI) decal for spark plug gap information.
**If a spark plug is removed for inspection, it must
be reinstalled in the same cylinder. If a spark plug
needs to be replaced, use only spark plugs with the
same service part number suffix letter as shown on
the engine decal.
REFILL CAPACITIES
Fluid Ford Part
NameApplication Capacity
Brake fluid Motorcraft
High
Performance
DOT 3 Motor
Vehicle Brake
FluidAll Fill to line on
reservoir
Engine oil
(includes
filter
change)
6
Motorcraft
SAE 5W-20
Premium
Synthetic
Blend Motor
Oil (US)
Motorcraft
SAE 5W-20
Super
Premium
Motor Oil
(Canada)OHV V6
engine4.7 L
(5.0 quarts)
4.6L SOHC
V8 engine5.7L
(6.0 quarts)
4.6L 4v V8
(Mach 1)5.7L
(6.0 quarts)
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
215
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
Page 230 of 240

E
Emergencies, roadside
jump-starting ........ 136
Emergency Flashers 124
Emission control
system ...................... 191
Engine ...................... 221
cleaning ................. 155
coolant ................... 174
idle speed control . 171
lubrication
specifications. 218, 221
refill capacities ...... 215
service
points ............. 164–166
Engine block
heater ....................... 103
Engine oil ................ 167
checking and
adding .................... 167
dipstick .................. 167
filter,
specifications. 170, 215
recommendations . 170
refill capacities ...... 215
specifications. 218, 221
Exhaust fumes ........ 103
F
Floor mats ................. 50
Fluid capacities ....... 215
Foglamps ................... 35
Fuel .......................... 182
calculating fuel
economy ................ 187
cap ......................... 184
capacity ................. 215choosing the
right fuel ................ 185
comparisons with
EPA fuel economy
estimates ............... 191
detergent in fuel ... 187
filling your vehicle
with fuel. 182, 184, 188
filter,
specifications. 187, 215
improving fuel
economy ................ 187
octane
rating ..... 185–186, 221
quality .................... 186
running out of fuel 187
safety information
relating to automotive
fuels ....................... 182
Fuses ................ 125–126
G
Gas cap (see
Fuel cap) ................. 184
Gas mileage (see
Fuel economy) ........ 187
Gauges ....................... 14
H
Hazard flashers ....... 124
Head restraints ......... 64
Headlamps ................. 35
aiming ...................... 37
bulb specifications .. 39
daytime running
lights ........................ 35
flash to pass ............ 36
high beam ............... 36
replacing bulbs ....... 40
2004 Mustang(mus)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
230