2008 Mercury Grand Marquis fuel

Seating and Safety Restraints 100
Seating 100
Safety restraints 105
Airbags 120
Child restraints 132
Tires, Wheels and Loading 143
Tire information 143
Tire inflation 145
Tire Pressure Monitoring System (TPMS) 158
Vehicle loading 163
Trailer towing 169
Recreational towing 172
Driving 173
Starting 173
Brakes 178
Traction Control™ 181
Air suspension 184
Transmission operation 185
Roadside Emergencies 191
Getting roadside assistance 191
Hazard flasher switch 192
Fuel pump shut-off switch 193
Fuses and relays 194
Changing tires 201
Lug nut torque 207
Jump starting 208
Wrecker towing 214
Customer Assistance 215
Reporting safety defects (U.S. only) 221
Reporting safety defects (Canada only) 222
Cleaning 223
Table of Contents
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2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)

Maintenance and Specifications 230
Engine compartment 232
Engine oil 234
Battery 237
Engine coolant 239
Fuel information 245
Air filter(s) 261
Part numbers 262
Maintenance product specifications and capacities 263
Engine data 266
Accessories 269
Index 271
All rights reserved. Reproduction by any means, electronic or mechanical
including photocopying, recording or by any information storage and retrieval
system or translation in whole or part is not permitted without written
authorization from Ford Motor Company. Ford may change the contents without
notice and without incurring obligation.
Copyright © 2007 Ford Motor Company
Table of Contents
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2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)

CALIFORNIA Proposition 65 Warning
WARNING:Engine exhaust, some of its constituents, and
certain vehicle components contain or emit chemicals known to
the State of California to cause cancer and birth defects or other
reproductive harm. In addition, certain fluids contained in vehicles and
certain products of component wear contain or emit chemicals known
to the State of California to cause cancer and birth defects or other
reproductive harm.
PERCHLORATE MATERIAL
Certain components of this vehicle such as airbag modules, seat belt
pretensioners, and button cell batteries may contain Perchlorate Material
– Special handling may apply for service or vehicle end of life disposal.
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
CONGRATULATIONS
Congratulations on acquiring your new Mercury. Please take the time to
get well acquainted with your vehicle by reading this handbook. The
more you know and understand about your vehicle, the greater the
safety and pleasure you will derive from driving it.
For more information on Ford Motor Company and its products visit the
following website:
•In the United States: www.ford.com
•In Canada: www.ford.ca
•In Mexico: www.ford.com.mx
•In Australia: www.ford.com.au
Additional owner information is given in separate publications.
ThisOwner’s Guidedescribes every option and model variant available
and therefore some of the items covered may not apply to your
particular vehicle. Furthermore, due to printing cycles it may describe
options before they are generally available.
Remember to pass on theOwner’s Guidewhen reselling the vehicle. It
is an integral part of the vehicle.
Fuel pump shut-off switch:In the event of an accident the
safety switch will automatically cut off the fuel supply to the
engine. The switch can also be activated through sudden vibration (e.g.
collision when parking). To reset the switch, refer to theFuel pump
shut-off switchin theRoadside Emergencieschapter.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
4

These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAirbag - Front
Airbag - SideChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemParking Brake System
Brake Fluid -
Non-Petroleum BasedParking Aid System
Stability Control SystemSpeed Control
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
8

Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Service Engine SoonEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
9

Service Engine Soon:TheService
Engine Soonindicator light
illuminates when the ignition is first
turned to the ON position to check
the bulb and to indicate whether the vehicle is ready for
Inspection/Maintenance (I/M) testing. Normally, the
Service engine soon

light will stay on until the engine is cranked, then turn itself off if no
malfunctions are present. However, if after 15 seconds the
Service
engine soon
light blinks eight times, it means that the vehicle is not
ready for I/M testing. See theReadiness for Inspection/Maintenance
(I/M) testingin theMaintenance and Specificationschapter.
Solid illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer toOn
board diagnostics (OBD-II)in theMaintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Powertrain malfunction
indicator (if equipped):
Illuminates when a powertrain fault
has been detected. Contact your
authorized dealer as soon as possible.
Check fuel cap (if equipped):
Illuminates when the fuel cap may
not be properly installed. Continued
driving with this light on may cause
the Service engine soon warning
light to come on. Refer toFuel
filler capin theMaintenance and Specificationschapter.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
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Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure:Illuminates
when the oil pressure falls below the
normal range. Check the oil level
and add oil if needed. Refer to
Engine oilin theMaintenance and Specificationschapter.
Engine coolant temperature (if
equipped):Illuminates when the
engine coolant temperature is high.
Stop the vehicle as soon as possible, switch off the engine and let cool.
Refer toEngine coolantin theMaintenance and Specifications
chapter.
Never remove the coolant reservoir cap while the engine is
running or hot.
Traction control™ AdvanceTrac
active (if equipped):Illuminates
when the Traction control™ system
is active. It will be lit for a minimum
of four seconds or for the duration
of the Traction Control™ event,
refer to theDrivingchapter for more information.
Severity indicator (if equipped):
Displays the indicated severity color
when any of the following warning
conditions has occurred:
•Red: Low Oil Pressure, Charge
System, Engine Coolant Over Temperature, Door Ajar
•Amber: Low Fuel
Refer toMessage Centerin theDriver Controlschapter.
Low tire pressure warning (if
equipped):Illuminates when your
tire pressure is low. If the light
remains ON at start up or while
driving, the tire pressure should be
checked. Refer toInflating Your Tiresin theTires, Wheels and
Loadingchapter. When the ignition is first turned to ON, the light will
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
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illuminate for 3 seconds to ensure the bulb is working. If the light does
not turn ON, have the system inspected by your authorized dealer. For
more information on this system, refer toTire Pressure Monitoring
Systemin theTires, Wheels and Loadingchapter.
Air suspension (if equipped):
Illuminates when the air suspension
is turned OFF, the load limit is
exceeded or the air suspension
system requires servicing.
Low fuel (if equipped):
Illuminates when the fuel level in
the fuel tank is at or near empty
(refer toFuel gaugein this chapter
for more information).
O/D off:Illuminates when the
overdrive function of the
transmission has been turned OFF,
refer to theDrivingchapter. If the
light does not illuminate, have the transmission serviced soon, or damage
may occur.
Speed control (if equipped):
Illuminates when the speed control
is activated. Turns off when the
speed control system is deactivated.
Door ajar (if equipped):
Illuminates when one of the doors is
not completely shut and the ignition
is turned to ON. With the ignition in
RUN position, a tone will sound for one second (if a door is open).
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high beam headlamps are turned on.
O/D
OFF
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
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