
3. Install a new air filter element
into the tray assembly.
4. Return air filter tray to original
position by pressing firmly on the
handle until all rearward movement
stops and secure the two clamps.
MOTORCRAFT PART NUMBERS
Component 5.4L 3V V8 engine
Air filter element FA-1754
Battery BXT-65-650
Fuel filter FG-986B
Oil filter FL-820-S
PCV valve
1
Spark plugs2
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 dealer or a qualified service
technician. Refer toscheduled maintenance informationfor the
appropriate intervals for changing the PCV valve.
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 dealer or a qualified service
technician. Refer toscheduled 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.
2006 Mark LT(mlt)
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Maintenance and Specifications
234

Fluid Ford Part
NameApplication Capacity
Rear axle
5Motorcraft SAE
75W-140
Synthetic Rear
Axle Lubricant9.75 inch axle 5.5 pints (2.6L)6
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll 4.25 quarts (4.0L)
1Add the coolant type originally equipped in your vehicle.2Service refill capacity is determined by filling the transfer case to the
bottom of the filler hole with the vehicle on a level surface.
3Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. Check the container to verify the fluid being added is of the
correct type. Refer to yourscheduled maintenance informationto
determine the correct service interval.
Some transmission fluids may be labeled as dual usage, such as
MERCONand MERCONV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONtype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONV type fluid.
MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
4Approximate dry fill capacity including transmission fluid cooling
system, actual refill capacities will vary based on vehicle application and
transmission fluid cooling system (i.e. coolers size, cooling lines. auxiliary
cooler capacities). The amount of transmission fluid and fluid level
should be set by the indication on the dipstick’s normal operating range.
5Your vehicle’s rear axle is filled with a synthetic rear axle lubricant and
is considered lubricated for life. These lubricants do not need to be
checked or changed unless a leak is suspected, service is required or the
2006 Mark LT(mlt)
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Maintenance and Specifications
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axle assembly has been submerged in water. The axle lubricant should
be changed any time the rear axle has been submerged in water.
6Service refill capacity is determined by filling the axle to 1/4-9/16 inch
(6-14 mm) below the bottom of the filler hole with the vehicle on a level
surface.
Add 4 oz. (118 ml) of Additive Friction Modifier or equivalent meeting
Ford specification EST-M2C118–A, for complete fill of 9.75 inch
Traction-Lok axles.
7Use 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
ItemFord part
name or
equivalentFord part
numberFord
specification
Front axle
(4X4)Motorcraft SAE
80W-90
Premium Rear
Axle LubricantXY-80W90-QL WSP-M2C197–A
Rear axleMotorcraft SAE
75W-140
Synthetic Rear
Axle Lubricant
1
XY-75W140–QL WSL-M2C192–A
Brake fluidMotorcraft High
Performance
DOT 3 Motor
Vehicle Brake
FluidPM-1 ESA-M6C25-A
and DOT 3
Engine coolant Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)VC-7–A (except
CA, OR and NM
), VC-7-B (CA,
OR and NM)WSS-
M97B51-A1
2006 Mark LT(mlt)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
237

ItemFord part
name or
equivalentFord part
numberFord
specification
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateZC-32–A WSB-M8B16–A2
1Add 4 oz (118 ml) of Additive Friction Modifier XL-3 or equivalent for
complete refill of Traction-Lok axles.
2Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. Check the container to verify the fluid being added is of the
correct type. Refer toscheduled maintenance informationto
determine the correct service interval.
Some transmission fluids may be labeled as dual usage, such as
MERCONand MERCONV. These dual usage fluids are not to be used
in an automatic transmission that requires use of the MERCONtype
fluid. However, these dual usage fluids may be used in transmissions that
require the MERCONV type fluid.
MERCONand MERCONV type fluids are not interchangeable.
DO NOT mix MERCONand MERCONV. Use of a transmission
fluid that indicates dual usage (MERCONand MERCONV) in
an automatic transmission application requiring MERCONmay
cause transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
ENGINE DATA
Engine 5.4L V8 engine
Cubic inches 330
Required fuel 87 octane
Firing order 1-3-7-2-6-5-4-8
Ignition system Coil on plug
Spark plug gap
10.040–0.050 inch (1.02–1.28mm)
Compression ratio 9.85:1
1The 5.4L 3V spark plug gap CAN NOT be adjusted.
2006 Mark LT(mlt)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
239

Cargo organization and management
Rear seat entertainment systems
Trailer hitches, wiring harnesses and accessories
Peace of mind
First aid and highway safety kits
Mobile-ease hands-free communication system
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 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 dealer or the owner may adversely affect battery
performance and durability.
2006 Mark LT(mlt)
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USA(fus)
Accessories
245

Clock adjust
6-CD in dash .............................17
Compass, electronic
set zone adjustment .................53
Console ........................................40
overhead ....................................36
Controls
power seat .................................79
steering column ........................46
Coolant
checking and adding ..............212
refill capacities ................216, 235
specifications ..................237, 239
Cruise control
(see Speed control) ....................44
Customer Assistance ................174
Ford accessories for your
vehicle .....................................203
Ford Extended Service
Plan ..........................................195
Getting assistance outside
the U.S. and Canada ..............196
Getting roadside assistance ...174
Getting the service you
need .........................................189
Ordering additional owner’s
literature .................................196
The Dispute Settlement
Board .......................................192
Utilizing the
Mediation/Arbitration
Program ...................................194
D
Daytime running lamps
(see Lamps) ................................25
Dipstick
automatic transmission
fluid ..........................................229engine oil .................................207
Doors
lubricant specifications ..........237
Driveline universal joint and
slip yoke ....................................232
Driving under special
conditions ..................162, 167, 170
sand .........................................169
snow and ice ...........................171
through water .................170, 172
DVD system .................................19
E
Electronic message center .........52
Emergencies, roadside
jump-starting ..........................183
Emergency Flashers .................175
Emission control system ..........226
Engine ................................239–240
cleaning ...................................200
coolant .....................................212
fail-safe coolant ......................217
idle speed control ...................210
lubrication specifications ......237,
239
refill capacities ........................235
service points ..........................206
starting after a collision .........175
Engine block heater .................154
Engine oil ..................................207
change oil soon warning,
message center .......................207
checking and adding ..............207
dipstick ....................................207
filter, specifications ........209, 234
recommendations ...................209
refill capacities ........................235
specifications ..................237, 239
2006 Mark LT(mlt)
Owners Guide (post-2002-fmt)
USA(fus)
Index
247