2008 FORD F150 maintenance

Changing the air filter element
•4.2L/4.6L engines
1. Loosen the clamp that secures
the air filter element in place.
2. Carefully separate the two halves
of the air filter housing.
3. Remove the air filter element
from the open end of the air filter
housing.
4. Install a new air filter element.
5. Reassemble the two halves of the air filter housing, aligning the notch
and slot found on the top of each half. Secure the clamp, making sure
not to crimp the air filter edges between the two halves of the air filter
housing. This could cause filter damage and allow unmetered air to enter
the engine if not properly seated.
•5.4L Engine
1. Release two retainer clamps.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
378

2. Pull air filter tray assembly out
toward front of vehicle and lift air
filter element up and out of housing.
The air filter box needs to be free of any debris before installing a new
air filter.
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.
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.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
379

MOTORCRAFT PART NUMBERS
Component 4.2L V6 engine 4.6L V8 engine 5.4L V8 engine
Air filter element FA-1632 FA-1632 FA-1754
Battery BTX-59 or
BTX-65-650
3BTX-59 or
BTX-65-6503BTX-59 or
BTX-65-6503
Fuel Filter FG-986-B FG-986-B FG-986-B
Oil Filter FL-400-S FL-820-S 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 authorized dealer. Refer to
scheduled 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 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.
3Heavy-duty battery, if equipped.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
380

MAINTENANCE PRODUCT SPECIFICATIONS AND CAPACITIES
Item CapacityFord part name or
equivalentFord part number /
Ford specification
Brake fluid and (clutch
fluid–if equipped)Between
MIN/MAX on brake
fluid reservoir and to
the line or step on
clutch fluid reservoirMotorcraft High
Performance DOT 3
Motor Vehicle Brake
FluidPM-1-C /
WSS-M6C62-A
4.2L engine oil 6.0 quarts (5.7L)Motorcraft SAE 5W-20
Premium Synthetic
Blend Motor Oil (US)
Motorcraft SAE 5W-20
Super Premium Motor
Oil (Canada)
1
XO-5W20-QSP (US)
CXO-5W20-LSP12
(Canada) /
WSS-M2C930-A and API
Certification Mark 4.6L engine oil 6.0 quarts (5.7L)
5.4L engine oil 7.0 quarts (6.6L)
4.2L engine coolant 17.6 quarts (16.7L)Motorcraft Premium
Gold Engine Coolant
with bittering agent
(yellow-colored)
2
VC-7-B /
WSS-M97B51-A1 4.6L engine coolant 20.5 quarts (19.4L)
5.4L engine coolant 20.9 quarts (19.8L)
Cooling system stop
leak pellets—Motorcraft Cooling
System Stop Leak
PelletsVC-6 /
WSS-M99B37-B6
Front axle (4X4) 3.5 pints (1.8L)Motorcraft SAE
80W-90 Premium Rear
Axle LubricantXY-80W-90-QL /
WSP-M2C197-A
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
381

Item CapacityFord part name or
equivalentFord part number /
Ford specification
Rear 8.8/9.75 inch axle
fluid5.5 pints (2.6L)
3
Motorcraft SAE
75W-140 Rear
Synthetic Axle
Lubricant
5
XY-75W140-QL /
WSL-M2C192-A
Rear 10.25 inch axle
fluid6.9 pints (3.3L)
4
Seat tracks — Multi-Purpose GreaseXG-4 or XL-5 /
ESB-M1C93-B
Transmission
/steering/parking brake
linkages and pivots,
brake and clutch pedal
shaft/clutch master
cylinder push rod to
clutch pedal pin (if
equipped)—Premium Long-Life
GreaseXG-1-C /
ESA-M1C75-B
Hinges, latches, striker
plates, fuel filler door
hinge and door check
arm—Hinges, latches,
striker plates, fuel
filler door hinge and
door check armXG-3-A /
ESE-M1C171-A
Power steering fluidFill to between MIN
and MAX lines on
reservoirMotorcraft
MERCONVATFXT-5-QM /
MERCONV
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
382

Item CapacityFord part name or
equivalentFord part number /
Ford specification
Transfer case fluid
(4X4 / AWD)2.0 quarts (1.9L)
6
Motorcraft Transfer
Case FluidXL–12 /
—
Manual transmission
fluid3.75 quarts (3.5L)Motorcraft
MERCONVATFXT-5-QM /
MERCONV
Automatic transmission
fluid (4R75E)13.9 quarts (13.2L)
7
Motorcraft
MERCONVATF
8
XT-5-QM /
MERCONV
Windshield washer fluid 4.25 quarts (4.0L)Motorcraft Premium
Windshield Washer
ConcentrateZC-32-A /
WSB-M8B16-A2
Fuel tank
Reg. Cab 6.5’ box /
SuperCab 5.5’ box26.0 gallons (98.4L) — —
Fuel tank SuperCrew
5.5’ box30.0 gallons (113.6L) — —
Fuel tank SuperCrew
6.5’ box27.0 gallons (102.2L)
Standard
35.7 gallons (135.1L)
Optional——
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
383

Item CapacityFord part name or
equivalentFord part number /
Ford specification
Fuel tank
Reg. Cab 8’ box /
SuperCab 6.5’ box /
SuperCab 8’ box27.0 gallons (102.2L)
Standard
35.7 gallons (135.1L)
Optional——
1Use 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.2Add the coolant type originally equipped in your vehicle.3Service 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 XL-3 or equivalent meeting Ford specification EST-M2C118-A, for complete
fill of 8.8 inch and 9.75 inch Traction-Lok axles.4Service refill capacity is determined by filling the axle to the bottom of the filler hole with the vehicle on a level surface.
For 10.25 inch Traction-Lok axles, use 6.5 pints (3.1L) of Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant and 8 oz.
(236 ml) of Additive Friction Modifier XL–3 or equivalent meeting Ford Specification EST-M2C118-A.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 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 transfer case to the bottom of the filler hole with the vehicle on a level
surface.7Approximate 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.8Automatic 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.
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
384

ENGINE DATA
Engine 4.2L V6 engine 4.6L V8 engine 5.4L V8 engine
Cubic inches 256 281 330
Required fuel87 octane 87 octane 87 octane or
Ethanol (E85)
2
Firing order 1-4-2-5-3-6 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8
Ignition system EDIS Coil on plug Coil on plug
Spark plug gap0.052–0.056 inch
(1.32–1.42mm)0.052–0.056 inch
(1.32–1.42mm)0.040–0.050 inch
(1.02–1.28mm)
1
Compression
ratio9.3:1 9.37:1 9.85:1
1The 5.4L 3V spark plug gap can’t be adjusted.
25.4L 3V FFV engines only.
Engine drivebelt routing
•4.2L V6 Engine
2008 F-150(f12)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
385