Page 257 of 270

MAINTENANCE PRODUCT SPECIFICATIONS AND CAPACITIES
Item Capacity Ford part nameFord part number / Ford
specification
Brake fluidBetween MIN
and MAX on
reservoirMotorcraft High
Performance DOT 3
Motor Vehicle Brake
FluidPM-1-C /
WSS-M6C62-A or
WSS-M6C65-A1
Door weatherstrips — Silicone Spray LubricantXL-6 /
ESR-M13P4-A
Engine coolant18.6 quarts
(17.6L)Motorcraft Premium
Gold Engine Coolant
with bittering agent
(yellow-colored)
1
VC-7-B /
WSS-M97B51-A1
Cooling system stop
leak pellets—Motorcraft Cooling
System Stop Leak
PelletsVC-6 /
WSS-M99B37-B6
Engine oil
2
6.0 quarts (5.7L)Motorcraft SAE 5W-20
Premium Synthetic
Blend Motor Oil (US)
Motorcraft SAE 5W-20
Super Premium Motor
Oil (Canada)XO-5W20-QSP (US)
CXO-5W20-LSP12 (Canada)
/
WSS-M2C930-A with API
Certification Mark
Hinges, latches,
striker plates, fuel
filler door hinge and
seat tracks— Multi-Purpose GreaseXG-4 or XL-5 /
ESB-M1C93-B
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Maintenance and Specifications
257
Page 258 of 270

Item Capacity Ford part nameFord part number / Ford
specification
Lock cylinders —Motorcraft Penetrating
and Lock LubricantXL-1 /
None
Power steering fluidBetween MIN
and MAX on
reservoirMotorcraft
MERCONVATFXT-5-QM /
MERCONV
Automatic
transmission fluid
(4R75E)13.9 quarts
(13.2L)
3
Motorcraft
MERCONLV AT F
4
XT-10-QLV /
MERCONLV
Rear axle fluid
5
5.0 pints (2.4L)
6
Motorcraft SAE 80W-90
Premium Rear Axle
LubricantXY-80W90-QL /
WSP-M2C197-A
Windshield washer
fluidFill to line on
reservoirMotorcraft Premium
Windshield Washer
ConcentrateZC-32-A /
WSB-M8B16-A2
Fuel Tank19.0 gallons
(71.9L)——
1Add the coolant type originally equipped in your vehicle.2Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only meet the
requirements of Ford specification WSS-M2C930-A and the API Certification mark.3Indicates 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.4Use of any fluid other than the recommended fluid may cause transmission damage. Refer to
scheduled maintenance informationto determine the correct service interval.
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Maintenance and Specifications
258
Page 259 of 270
5Rear axles are considered lubricated for life when the vehicle is used for normal service. For
severe duty requirements, seeExceptions and / or Special Operating Conditionsinscheduled
maintenance information.Add 4 oz. (118 ml) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of Traction-Lok rear axles.6Service refill capacities are determined by filling the rear axle 1/4 inch to 9/16 inch (6 mm to
14 mm) below the bottom of the filler hole.
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Maintenance and Specifications
259
Page 260 of 270
ENGINE DATA
Engine 4.6L V8 engine 4.6L FFV V8 engine
Cubic inches 281 281
Required fuel 87 octane 87 octane or Ethanol
(E85)
Firing order 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8
Ignition system Coil on plug Coil on plug
Spark plug gap 0.052–0.056 inch
(1.32–1.42 mm)0.041–0.047 inch
(1.04–1.20 mm)
Compression ratio 9.4:1 9.4:1
Engine drivebelt routing
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Maintenance and Specifications
260
Page 261 of 270
IDENTIFYING YOUR VEHICLE
Safety Compliance Certification Label
The National Highway Traffic Safety
Administration Regulations require
that a Safety Compliance
Certification Label be affixed to a
vehicle and prescribe where the
Safety Compliance Certification
Label may be located. The Safety
Compliance Certification Label is
located on the structure (B-Pillar)
by the trailing edge of the driver’s
door or the edge of the driver’s
door.
Vehicle identification number (VIN)
The vehicle identification number is
located on the driver side
instrument panel.
Please note that in the graphic,
XXXX is representative of your
vehicle identification number.
XXXXXXXXXXXXXXXXX
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Maintenance and Specifications
261
Page 262 of 270
The Vehicle Identification Number (VIN) contains the following
information:
1. World manufacturer identifier
2. Brake system / Gross Vehicle
Weight Rating (GVWR) / Restraint
System
3. Vehicle line, series, body type
4. Engine type
5. Check digit
6. Model year
7. Assembly plant
8. Production sequence number
TRANSMISSION CODE DESIGNATIONS
You can find a transmission code on
the Safety Compliance Certification
Label. The following table tells you
which transmission each code
represents.
Description Code
Four-speed automatic overdrive (4R75E) Q
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Maintenance and Specifications
262
Page 263 of 270

GENUINE MERCURY ACCESSORIES FOR YOUR VEHICLE
A wide selection of Genuine Mercury Accessories are available for your
vehicle through your local Mercury or Ford of Canada dealer. These
quality accessories have been specifically engineered to fulfill your
automotive needs; they are custom designed to complement the style
and aerodynamic appearance of your vehicle. In addition, each accessory
is made from high quality materials and meets or exceeds Mercury’s
rigorous engineering and safety specifications. Ford Motor Company will
repair or replace any properly dealer-installed Genuine Mercury
Accessories found to be defective in factory-supplied materials or
workmanship during the warranty period, as well as any component
damaged by the defective accessories. The accessories will be warranted
for whichever provides you the greatest benefit:
•12 months or 12,000 miles (20,000 km) (whichever occurs first), or
•the remainder of your new vehicle limited warranty.
Contact your dealer for details and a copy of the warranty.
Following is a list of several Genuine Mercury Accessories. Not all
accessories are available for all models. To find out what accessories are
available for your vehicle, please contact your dealer or visit our online
store at: www.mercuryaccessories.com.
Exterior style
Side window deflectors
Splash guards
Spoiler
Interior style
Electrochromatic compass/temperature interior mirrors
Floor mats
Lifestyle
Cargo organization and management
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Accessories
263
Page 264 of 270

Peace of mind
Remote start
Vehicle security systems
For maximum vehicle performance, keep the following information in
mind when adding accessories or equipment to your vehicle:
•When adding accessories, equipment, passengers and luggage to your
vehicle, do not exceed the total weight capacity of the vehicle or of
the front or rear axle (GVWR or GAWR as indicated on the Safety
Compliance Certification label). Consult your authorized dealer for
specific weight information.
•The Federal Communications Commission (FCC) and Canadian Radio
Telecommunications Commission (CRTC) regulate the use of mobile
communications systems — such as two-way radios, telephones and
theft alarms - that are equipped with radio transmitters. Any such
equipment installed in your vehicle should comply with FCC or CRTC
regulations and should be installed only by a qualified service
technician.
•Mobile communications systems may harm the operation of your
vehicle, particularly if they are not properly designed for automotive
use.
•To avoid interference with other vehicle functions, such as anti-lock
braking systems, amateur radio users who install radios and antennas
onto their vehicle should not locate the Amateur Radio Antennas in
the area of the driver’s side hood.
•Electrical or electronic accessories or components that are added to
the vehicle by the authorized dealer or the owner may adversely affect
battery performance and durability.
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Accessories
264