Page 253 of 272

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. Refer toMaintenance
product specifications and capacitiesin this chapter.
Use of a non-approved automatic transmission fluid may cause
internal transmission component damage.
If necessary, add fluid in 1/2 pint (250 ml) increments through the filler
tube until the level is correct.
If an overfill occurs, excess fluid
should be removed by an authorized
dealer.
An overfill condition of
transmission fluid may cause
shift and/or engagement concerns and/or possible damage.
Do not use supplemental transmission fluid additives, treatments or
cleaning agents. The use of these materials may affect transmission
operation and result in damage to internal transmission components.
AIR FILTER
Refer toscheduled maintenance informationfor the appropriate
intervals for changing the air filter element.
When changing the air filter element, use only the Motorcraft air filter
element listed. Refer toMotorcraft part numbersin this chapter.
To reduce the risk of vehicle damage and/or personal burn
injuries do not start your engine with the air cleaner removed
and do not remove it while the engine is running.
Changing the air filter element
1. Release the clamps that secure the air filter housing cover.
2. Carefully separate the two halves of the air filter housing.
3. Remove the air filter element from the air filter housing.
4. Wipe the air filter housing and cover clean to remove any dirt or
debris and to ensure good sealing.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
253
Page 254 of 272

5. Install a new air filter element. Be
careful not to crimp the filter
element edges between the air filter
housing and cover. This could cause
filter damage and allow unfiltered
air to enter the engine if not
properly seated.
6. Replace the air filter housing cover and secure the clamps.
7. Replace the air inlet tube and secure the clamp.
Note:Be sure the hinge features of the air filter cover to the air filter
housing are fully engaged when reassembling the air filter assembly.
Note:Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be void for any damage to
the engine if the correct air filter element is not used.
MOTORCRAFT PART NUMBERS
Component 4.6L SOHC V8
engine4.6L FFV SOHC V8
engine
Air filter element FA-1668 FA-1668
Fuel filter FG-986B FG-986B
Battery-standard BXT-65–650 BXT-65–650
Battery-heavy duty BXT-65–750 BXT-65–750
Oil filter FL-820-S FL-820-S
PCV valve
11
Spark plugs22
1
The PCV valve is a critical emission component. It is one of the items
listed inscheduled maintenance informationand is essential to the
life and performance of your vehicle and to its emissions system.
For PCV valve replacement, see your authorized dealer. Refer to
scheduled maintenance informationfor the appropriate intervals for
changing the PCV valve.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
254
Page 255 of 272
Replace the PCV valve with one that meets Ford material and
design specifications for your vehicle, such as a Motorcraft or
equivalent replacement part. The customer warranty may be void
for any damage to the emissions system if such a PCV valve is not
used.
2For spark plug replacement, see your authorized dealer. Refer to
scheduled maintenance informationfor the appropriate intervals for
changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for your vehicle, such as Motorcraft or
equivalent replacement parts. The customer warranty may be
void for any damage to the engine if such spark plugs are not
used.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
255
Page 256 of 272

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 or PM-1-C /
ESA-M6C25-A or
WSS-M6C62-A
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
Lock cylinders —Motorcraft Penetrating and
Lock LubricantXL-1 /
None
Power steering fluidFill to line on
reservoirMotorcraft MERCONVATFXT-5-QM /
MERCONV
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
256
Page 257 of 272

Item Capacity Ford part nameFord part number /
Ford specification
Automatic
transmission fluid
(4R75E)13.9 quarts
(13.2L)
3
Motorcraft MERCONVATF
4
XT-5-QM /
MERCONV
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.4Automatic transmissions that require MERCONV should only use MERCONV fluid or fluid that
is specified dual usage MERCON/MERCONV. Refer toscheduled maintenance informationto
determine the correct service interval. Use of any fluid other than the recommended fluid may
cause transmission damage.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.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
257
Page 258 of 272
ENGINE DATA
Engine 4.6L V8 engine 4.6L FFV V8 engine
Cubic inches 281 281
Required fuel 87 octane 87 octane or Ethanol
(E 85)
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
•4.6L V8 Engine
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
258
Page 260 of 272
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/TRANSAXLE CODE DESIGNATIONS
You can find a
transmission/transaxle code on the
Safety Compliance Certification
Label. The following table tells you
which transmission or transaxle
each code represents.
Description Code
Four-speed automatic overdrive (4R75E) -
LivoniaQ
Four-speed automatic overdrive (4R75E) -
SharonvilleS
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
260
Page 261 of 272

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
Bug shields
Deflectors
Splash guards
Interior style
Electrochromatic compass/temperature interior mirrors
Floor mats
Lifestyle
Cargo organization and management
Peace of mind
Remote start
Vehicle security systems
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Accessories
261