Page 3 of 256
Maintenance and Specifications 211
Engine compartment 212
Engine oil 213
Battery 217
Engine Coolant 219
Fuel information 225
Air filter(s) 239
Part numbers 240
Refill capacities 241
Lubricant specifications 242
Accessories 248
Index 250
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Table of Contents
3
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Page 241 of 256

REFILL CAPACITIES
Fluid Ford Part Name Capacity
Engine oil (includes
filter change)
6Motorcraft SAE 5W-20
Premium Synthetic
Blend Motor Oil (US)
Motorcraft SAE 5W-20
Super Premium Motor
Oil (Canada)6.0 quarts (5.7L)
Brake fluid Motorcraft High
Performance DOT 3
Motor Vehicle Brake
Fluid
1
Fill to line on reservoir
Power steering fluid Motorcraft MERCON
AT FFill to line on reservoir
Transmission fluid
(4R70/75 E)
2Motorcraft
MERCONVATF13.9 quarts (13.2L)3
Engine coolant4Motorcraft Premium
Gold Engine Coolant
(yellow-colored)18.6 quarts (17.6L)
Fuel tank N/A 19.0 gallons (71.9L)
Rear axle lubricant
5Motorcraft SAE
80W-90 Premium Rear
Axle Lubricant5.0 pints (2.4L)
Windshield washer
fluidMotorcraft Premium
Windshield Washer
ConcentrateFill to line on reservoir
1Use only brake fluids certified to meet Ford specifications. Refer to
Lubricant Specificationsin this chapter. DOT 3 fluid is recommended.
However, if DOT 3 is not available, DOT 4 fluid can be used.
2Ensure the correct automatic transmission fluid is used. MERCONand
MERCONV are not interchangeable. DO NOT MIX MERCONand
MERCONV. Refer to thescheduled maintenance informationto
determine the correct service interval.
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.
4Add the coolant type originally equipped in your vehicle.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
241
Page 242 of 256

5Rear axles are considered lubricated for life when the vehicle is used for
normal service. See yourscheduled maintenance informationfor
Severe Duty requirements.
Traction-Lok axles use 4.50-4.75 pints (2.1-2.3L) of rear axle lubricant.
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 axle.
Service 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.
6Use 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.
LUBRICANT SPECIFICATIONS
Item Ford part
nameFord part
numberFord
specification
Brake fluid Motorcraft High
Performance
DOT 3 Motor
Vehicle Brake
Fluid
1
PM-1 ESA-M6C25-A or
WSS-M6C62–A
Door
weatherstripsSilicone
LubricantXL-6 ESR-M13P4-A
Engine coolant Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)VC-7-A (U.S.,
except CA, OR
and NM),
VC-7-B (CA, OR
and NM)WSS-
M97B51–A1
Engine oil 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
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
242
Page 251 of 256

Climate control (see Air
conditioning or Heating) ............35
Clock adjust
6-CD in dash .............................31
AM/FM/CD .................................22
AM/FM/Tape/CD .......................26
Compass, electronic
set zone adjustment .................53
Console ........................................76
overhead ..............................51–52
Controls
power seat .................................94
steering column ........................66
Coolant
checking and adding ..............219
refill capacities ................223, 241
specifications ..................242, 244
Cruise control (see Speed
control) ........................................63
Cupholder(s) ...............................96
Customer Assistance ................180
Ford accessories for your
vehicle .....................................209
Ford Extended Service Plan .202
Getting assistance outside the
U.S. and Canada .....................203
Getting roadside assistance ...180
Getting the service you need 196
Ordering additional owner’s
literature .................................203
The Dispute Settlement
Board .......................................199
Utilizing the
Mediation/Arbitration
Program ...................................201
D
Daytime running lamps (see
Lamps) .........................................38Defrost
rear window ..............................37
Dipstick
automatic transmission
fluid ..........................................236
engine oil .................................213
Doors
lubricant specifications ..........242
Driving under special
conditions ..................................178
through water .........................179
E
Electronic message center .........72
Emergencies, roadside
jump-starting ..........................190
Emission control system ..........233
Engine ........................................244
cleaning ...................................206
coolant .....................................219
fail-safe cooling .......................224
idle speed control ...................217
lubrication
specifications ..................242, 244
refill capacities ........................241
service points ..........................212
starting after a collision .........181
Engine block heater .................166
Engine oil ..................................213
change oil soon warning,
message center .......................213
checking and adding ..............213
dipstick ....................................213
filter, specifications ........216, 240
recommendations ...................216
refill capacities ........................241
specifications ..................242, 244
Exhaust fumes ..........................166
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
251