
Checking the Fluid Level
1. Park your vehicle on level ground.
2. Set the parking brake and shift into
position neutral (N) or park (P). Turn
the engine off.
3. Clean any dirt from around the axle filler plug.
4. Remove the filler plug and inspect the lubricant level. It should be at the
bottom of the filler plug opening.
5. Add lubricant, if necessary, through the
filler plug opening.
6. Clean and install the filler plug securely.
Changing the Fluid
Note: Drain the rear axle while the lubricant
is warm.
1. Park your vehicle on level ground.
2. Set the parking brake and shift into position neutral (N) or park (P). Turn
the engine off.
3. Clean any dirt from around the axle filler and drain plugs.
4. Remove the filler and drain plugs. Drain
the lubricant into a suitable container.
Dispose of all used automotive fluids
in a responsible manner following your
local authorized standards.
5. Clean and install the drain plug securely.
6. Add lubricant through the filler plug opening.
7. Clean and install the filler plug securely.
SPRING U-BOLT CHECK
Check and tighten the U-bolt nuts after
your vehicle has been operated under load
for 1,000 mi (1,600 km) or six months,
whichever occurs first. Thereafter, install new U-bolt nuts and
washers every
36,000 mi (58,000 km).
Check and tighten the U-bolt nuts with
your vehicle at curb height and unloaded.
Inspect the U-bolt threads for rust and
debris. Clean the threads if contaminated.
U-bolt Nut Torque
Front Axle
Note: Check and tighten the U-bolt nuts
evenly using a criss-cross pattern in the
following stages. lb.ft (Nm)
Stage
40 (60)
1.
90 (125)
2.
170 (225)
3.
240 (325)
4.
Rear Axle
Note: Check and tighten the U-bolt nuts
evenly using a criss-cross pattern in the
following stages. lb.ft (Nm)
Stage
60 (75)
1.
90 (125)
2.
170 (225)
3.
240 (325)
4.
320 (440)
5.
224
F-650/750 (TBC) , enUSA, First Printing Maintenance

•
Never wash or rinse any ignition coil,
spark plug wire or spark plug well, or
the area in and around these locations.
• Cover the battery, power distribution
box, and air filter assembly to prevent
water damage when cleaning the
engine.
CLEANING THE WINDOWS AND
WIPER BLADES
Car wash chemicals and environmental
fallout can result in windshield and wiper
blade contamination. Dirty windshield and
wipers will result in poor windshield wiper
operation. Keep the windshield and wiper
blades clean to maintain windshield wiper
performance.
To clean the windshield and wiper blades:
• Clean the windshield with a
non-abrasive glass cleaner. When
cleaning the interior of the windshield,
avoid getting any glass cleaner on the
instrument panel or door panels. Wipe
any glass cleaner off these surfaces
immediately.
• For windshields contaminated with
tree sap, chemicals, wax or bugs, clean
the entire windshield using steel wool
(no greater than 0000 grade) in a
circular motion and rinse with water.
• Clean the wiper blades with isopropyl
rubbing alcohol or windshield washer
concentrate.
Note: Do not use razor blades or other
sharp objects to clean or remove decals
from the inside of the heated rear window.
The vehicle warranty does not cover
damage caused to the heated rear window
grid lines. CLEANING THE INTERIOR WARNINGS
Do not use cleaning solvents, bleach
or dye on the vehicle
’s safety belts,
as these actions may weaken the
belt webbing. On vehicles equipped with
seat-mounted airbags, do not use
chemical solvents or strong
detergents. Such products could
contaminate the side airbag system and
affect performance of the side airbag in a
collision. For fabric, carpets, cloth seats, safety belts
and seats equipped with side airbags:
•
Remove dust and loose dirt with a
vacuum cleaner.
• Remove light stains and soil with
Motorcraft Professional Strength
Carpet & Upholstery Cleaner.
• If grease or tar is present on the
material, spot-clean the area first with
Motorcraft Spot and Stain Remover. In
Canada, use Motorcraft Multi-Purpose
Cleaner.
• If a ring forms on the fabric after spot
cleaning, clean the entire area
immediately (but do not oversaturate)
or the ring will set.
• Do not use household cleaning
products or glass cleaners, which can
stain and discolor the fabric and affect
the flame retardant abilities of the seat
materials.
228
F-650/750 (TBC) , enUSA, First Printing Vehicle Care

CLEANING THE ALLOY
WHEELS (If Equipped)
Note: Do not apply a cleaning chemical to
warm or hot wheel rims and covers.
Note: Some automatic car washes may
cause damage to the finish on your wheel
rims and covers.
Note: Industrial-strength or heavy-duty
cleaners in combination with brush agitation
to remove brake dust and dirt, could wear
away the clear coat finish over a period time.
Note: Do not use hydrofluoric acid-based
or high caustic-based wheel cleaners, steel
wool, fuels or strong household detergents.
Note: If you intend parking your vehicle for
an extended period after cleaning the
wheels with a wheel cleaner, drive your
vehicle for a few minutes before doing so.
This will reduce the risk of increased
corrosion of the brake discs.
Alloy wheels and wheel covers are coated
with a clear coat paint finish. To maintain
their condition we recommend that you:
• Clean the wheels weekly using
Motorcraft Wheel and Tire Cleaner.
Apply using manufacturer's
instructions.
• Use a sponge to remove heavy
deposits of dirt and brake dust
accumulation.
• Rinse thoroughly with a strong stream
of water when you have completed the
cleaning process.
• To remove tar and grease, use
Motorcraft Bug and Tar Remover. VEHICLE STORAGE
If you plan on storing your vehicle for 30
days or more, read the following
maintenance recommendations to make
sure your vehicle stays in good operating
condition.
We engineer and test all motor vehicles
and their components for reliable, regular
driving. Under various conditions,
long-term storage may lead to degraded
engine performance or failure unless you
use specific precautions to preserve engine
components.
General
•
Store all vehicles in a dry, ventilated
place.
• Protect from sunlight, if possible.
• If vehicles are stored outside, they
require regular maintenance to protect
against rust and damage.
Body
• Wash your vehicle thoroughly to
remove dirt, grease, oil, tar or mud from
exterior surfaces, rear-wheel housing
and the underside of front fenders.
• Periodically wash your vehicle if it is
stored in exposed locations.
• Touch-up exposed or primed metal to
prevent rust.
• Cover chrome and stainless steel parts
with a thick coat of auto wax to prevent
discoloration. Re-wax as necessary
when you wash your vehicle.
• Lubricate all hood, door and luggage
compartment hinges and latches with
a light grade oil.
• Cover interior trim to prevent fading.
• Keep all rubber parts free from oil and
solvents.
230
F-650/750 (TBC) , enUSA, First Printing Vehicle Care

2. Loosen each wheel lug nut ½ turn
counterclockwise, but do not remove
them until the wheel is raised off the
ground.
3. Replace the flat tire with the spare tire,
making sure the valve stem is facing
outward on all front and inboard rear
wheels. If you are replacing the
outboard wheel, the valve stem must
be facing inward. Reinstall the lug nuts
until the wheel is snug against the hub.
Do not fully tighten the lug nuts until
the wheel has been lowered.
4. Lower the wheel and fully tighten the lug nuts in the order shown below. See
Technical Specifications (page 250).
5. Unblock the wheels. 8-lug nut torque sequence.
10-lug nut torque sequence.
249
F-650/750 (TBC) , enUSA, First Printing Wheels and TiresE161441
13
4
27
6
5
8 1
2
3
4
5
6
7 8
9
10
E169375

TECHNICAL SPECIFICATIONS
Wheel Lug Nut Torque Specifications
WARNING
When a wheel is installed, always remove any corrosion, dirt or foreign materials
present on the mounting surfaces of the wheel or the surface of the wheel hub,
brake drum or brake disc that contacts the wheel. Make sure that any fasteners
that attach the rotor to the hub are secured so they do not interfere with the mounting
surfaces of the wheel. Installing wheels without correct metal-to-metal contact at the
wheel mounting surfaces can cause the wheel nuts to loosen and the wheel to come off
while the vehicle is in motion, resulting in loss of control. lb.ft (Nm)
Bolt size
450–500 lb.ft (610–678 Nm)
M22 x 1.5
* Torque specifications are for nut and bolt threads free of dirt and rust. Use only Ford
recommended replacement fasteners.
On vehicles equipped with single rear wheels, retighten the lug nuts to the specified torque
at 100 miles (160 kilometers) after any wheel disturbance (such as tire rotation, changing
a flat tire, wheel removal).
On vehicles equipped with dual rear wheels, retighten the lug nuts to the specified torque
at 100 miles (160 kilometers) and again at 500 miles (800 kilometers) of new vehicle
operation and after any wheel disturbance (such as tire rotation, changing a flat tire,
wheel removal).
It is important to follow the proper wheel mounting and lug nut torque procedures. On all two-piece flat wheel nuts,
apply one drop of motor oil
between the flat washer and the
nut. Do not apply motor oil to the
wheel nut threads or the wheel
stud threads.
250
F-650/750 (TBC) , enUSA, First Printing Wheels and TiresE161443

ENGINE SPECIFICATIONS - 6.8L
6.8L V10 Engine
Engine
413
Cubic inches
Minimum 87 octane
Required fuel
1-6-5-10-2-7-3-8-4-9
Firing order
Coil on plug
Ignition system
0.039 - 0.043 in (1.00 - 1.10 mm)
Spark plug gap
9.2:1
Compression ratio
Drivebelt Routing
6.8L Engines with A/C 6.8L Engines without A/C
ENGINE SPECIFICATIONS - 6.7L DIESEL
Drivebelt Routing
6.7L Diesel
Engine
406
Cubic inches
Low Sulfur Diesel up to B20
Required fuel
1-3-7-2-6-5-4-8
Firing order
16.2:1
Compression ratio
252
F-650/750 (TBC) , enUSA, First Printing Capacities and SpecificationsE163762 E163763

MOTORCRAFT PARTS - 6.8L
6.8L V10 engine
Component
FA-1923
Air filter element
FL-820-S
Oil filter
BH-31-XT
One Battery (standard)(900 CCA)
BH-31-XT
Two Batteries (optional)(except for limited
series)(1800 CCA)
SP-509
Spark plugs-platinum
WW-2245
Windshield wiper blade
For scheduled maintenance, we recommend Motorcraft® replacement parts available
at your Ford dealer or at fordparts.com. These parts meet or exceed Ford Motor Company ’s
specifications and are engineered for your vehicle. Use of other parts may impact vehicle
performance, emissions and durability. Your warranty may be void for any damage related
to use of other parts.
If a Motorcraft® oil filter is not available, use an oil filter that meets industry performance
specification SAE/USCAR-36/USC-D.
For spark plug replacement, contact an authorized dealer. Replace the spark plugs at the
appropriate intervals. See Scheduled Maintenance (page 316).
254
F-650/750 (TBC) , enUSA, First Printing Capacities and Specifications

SATELLITE RADIO (If Equipped)
SIRIUS® broadcasts a variety of music,
news, sports, weather, traffic and
entertainment satellite radio channels. For
more information and a complete list of
SIRIUS satellite radio channels, visit www.siriusxm.com in the United States,
www.siriusxm.ca in Canada, or call SIRIUS
at 1-888-539-7474.
Note:
This receiver includes the eCos
real-time operating system. eCos is
published under the eCos License.
Satellite Radio Reception Factors Potential satellite radio reception issues
For optimal reception performance, keep the antenna
clear of snow and ice build-up and keep luggage and other
material as far away from the antenna as possible.
Antenna obstructions
Hills, mountains, tall buildings, bridges, tunnels, freeway
overpasses, parking garages, dense tree foliage and
thunderstorms can interfere with your reception.
Terrain
When you pass a ground-based broadcast-repeating
tower, a stronger signal may overtake a weaker one and
the audio system may mute.
Station overload
Your display may show ACQUIRING . . . to indicate the
interference and the audio system may mute.
Satellite radio signal interfer-
ence
SIRIUS® Satellite Radio Service
Note: SIRIUS reserves the unrestricted right
to change, rearrange, add or delete
programming including canceling, moving
or adding particular channels, and its prices,
at any time, with or without notice to you.
Ford Motor Company shall not be
responsible for any such programming
changes. SIRIUS satellite radio is a
subscription-based satellite radio service
that broadcasts a variety of music, sports,
news, weather, traffic and entertainment
programming. Your factory-installed
SIRIUS satellite radio system includes
hardware and a limited subscription term,
which begins on the date of sale or lease
of your vehicle. See an authorized dealer
for availability.
For more information on extended
subscription terms (a service fee is
required), the online media player and a
complete list of SIRIUS satellite radio
channels, and other features, please visit
www.siriusxm.com in the United States,
www.siriusxm.ca in Canada, or call SIRIUS
at 1-888-539-7474.
277
F-650/750 (TBC) , enUSA, First Printing Audio SystemE142593