
To make sure the emissions control
systems operate effectively, you should
have the services listed in the maintenance
schedule performed at the specified time
and mileage intervals. You should avoid
running out of fuel or turning off the ignition
when your vehicle is moving, especially at
high speeds.
Do not make unauthorized modifications
to the engine or vehicle. Modifications
causing increased amounts of unburned
fuel to reach the exhaust system can
significantly increase the temperature of
the engine compartment and the exhaust
system.
Avoid driving your vehicle if it does not
operate properly. If the engine diesels
(more than five seconds of engine run-on
after shut-off), misfires, surges, stalls or
backfires, see an authorized dealer. Be alert
for fluid leakage, odor, smoke, loss of oil
pressure, or charge indicator or over
temperature warning.
Vehicles equipped with a diesel engine
cannot use diesel fuel blended with waste
oil if equipped with a catalytic
converter-muffler. Waste lube oil blending
in fuel plugs the catalytic
converter-muffler, resulting in a significant
loss of engine power.
Noise Emissions Warranty, Prohibited
Tampering Acts and Maintenance
On January 1, 1978, Federal regulations
became effective governing the noise
emissions on trucks over 10000 pounds
(4536 kilograms) GVWR. The following
statements concerning prohibited
tampering acts and maintenance and the
noise warranty are found in the warranty
information, and are applicable to
completed trucks.
Tampering with Noise Control System
Prohibited
Federal law prohibits the following acts or
the causing thereof: (1) The removal or
rendering inoperative, by any person other
than for purposes of maintenance, repair
or replacement, of any device or element
of design incorporated into any new vehicle
for the purpose of noise control prior to its
sale or delivery to the ultimate purchaser
or while it is in use, or (2) the use of the
vehicle after such device or element of
design has been removed or rendered
inoperative by any person.
Among those acts presumed to constitute
tampering are the following acts listed:
Acts
Vehicle system
Removal of noise shields, hood blanket, tunnel liner oracoustical absorptive material.
Acoustical shielding
Removal or rendering inoperative the engine speed
governor to allow engine speed to exceed manufacturer specifications. Removal of engine mounted noise shield or oil pan enclosure.
Engine
Removal of the air duct, silencer, air cleaner, and/or air
cleaner element and baffle in air cleaner; re-indexing of air cleaner.
Engine air induction
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F650750 (TBC), enUSA, First Printing Scheduled Maintenance 

Sustained high-speed driving at gross vehicle weight rating (maximum loaded weight
for vehicle operation)
Replace the wheel bearing grease and grease seals if using
non-sealed bearings.
Every 30000 miles (48000
km)
Flush and refill the engine coolant. Do not add engine
coolant additive.
Every 60000 miles (96000
km) or 2400 engine hours
Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid
ounces (1.4 liters). Operating the engine with excessive coolant additive may cause
overheating which could lead to severe, permanent engine damage.
Note: After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400
engine hours, flush and fill every 45000 miles (72000 kilometers) or 1800 engine hours
thereafter. Operating in sustained ambient temperatures below -10°F (-23°C) or above 100°F (38°C)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours, or as indicated by the
information display
Replace the wheel bearing grease and grease seals if using
non-sealed bearings.
Every 30000 miles (48000
km) Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Rotate the tires*
, inspect the tires for wear and measure
tread depth.
Every 7500 miles (12000
km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
Inspect the steering and suspension ball joints and tie rods.
Lubricate any grease fittings.
Change the engine oil and filter. **
Every 7500 miles (12000
km), six months or 300
engine hours Inspect and lubricate the U-joints.
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F650750 (TBC), enUSA, First Printing Scheduled Maintenance 

Off-road operation
Replace the air inlet foam filter.
Every 30000 miles (48000
km)
Replace the wheel bearing grease and grease seals if using
non-sealed bearings.
* Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
** Reset the Intelligent Oil-Life Monitor after engine oil and filter changes. Using biodiesel, up to and including 20% biodiesel (B20)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15000 miles (24000
km), six months, 600 engine
hours, or as indicated by the
information display Using fuel other than ultra-low sulfur diesel fuel - vehicles operated where ultra-low
sulfur diesel fuel is not required or available
Change engine oil and filter.
Every 2500 miles (4000
km) or three months (if
using high sulfur fuel with
more than 500 ppm sulfur)
Change engine oil and filter.
Every 5000 miles (8000
km) or six months (if using
high sulfur fuel with fewer
than 500 ppm sulfur)
Exceptions
There are several exceptions to the Normal
Schedule:
Axle Maintenance
Change the axle fluid anytime an axle is
submerged in water. Rear axles and power take-off units with
synthetic fluid and light-duty trucks
equipped with Ford-design axles are
lubricated for life; do not check or change
fluid unless a leak is suspected, service is
required or the assembly has been
submerged in water. During long periods
of trailer towing with outside temperatures
above 70°F (21°C) and at wide-open
throttle for long periods above 45 mph
(72 km/h), change non-synthetic rear axle
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F650750 (TBC), enUSA, First Printing Scheduled Maintenance 

Exterior Mirrors.................................................51
Auxiliary Convex Mirrors...................................... 51
Clearance Lamps................................................. 52
Foldaway Exterior Mirrors...................................51
Heated Exterior Mirrors...................................... 52
Power Exterior Mirrors......................................... 51
Signal Indicator Mirrors...................................... 52
Telescoping Mirrors.............................................. 52
F
Fastening the Seatbelts..............................30 Energy Management Feature.......................... 34
Fastening the Cinch Tongue............................. 32
Lap Belts.................................................................. 32
Safety Belt Extension Assembly.................... 34
Safety Belt Locking Modes............................... 33
Using Safety Belts During Pregnancy...........33
Using the Safety Belt with Cinch Tongue (Front Center and Rear Center Seats
Only)...................................................................... 31
Federal Highway Administration Regulation
.......................................................14
Fifth Wheel Operation................................144 Hook-up................................................................. 145
Un-hook................................................................. 145
Ford Credit
.........................................................13
(U.S. Only)................................................................ 13
Frame and Tow Hook Inspection
...........223
Front Seat Armrest........................................79
Fuel and Refueling
........................................90
Fuel Consumption.......................................102 Calculating Fuel Economy.............................. 103
Filling the Tank.................................................... 102
Fuel Filter - 6.8L...........................................204
Fuel Quality - Diesel
......................................92
Biodiesel.................................................................. 93
Diesel Fuel Additives.......................................... 94
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Not Required ...........93
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Required (United
States/Canada/Puerto Rico/U.S. Virgin
Islands And Other Locales) ........................ 92
Fuel Quality - Gasoline.................................91 Choosing the Right Fuel..................................... 91Fuel Shutoff....................................................152
Running Out Of DEF (Diesel Exhaust
Fluid).................................................................. 153
Fuel Tank Selector Switch..........................112
Full Power Brake
...........................................124
Fuses.................................................................162
Fuse Specification Chart...........................162 Passenger Compartment Fuse Panel.........167
Power Distribution Box..................................... 162
G
Gauges...............................................................54 Diesel Engines....................................................... 56
Diesel Exhaust Fluid (DEF) Gauge.................57
Engine Coolant Temperature Gauge............55
Engine Oil Pressure Gauge............................... 55
Fuel Gauge.............................................................. 55
Gasoline Engines.................................................. 54
Gauge Package..................................................... 55
Information Display............................................. 56
Transmission Fluid Temperature Gauge................................................................... 55
General Driving Points
................................146
Backing Up............................................................ 146
General Information.......................................... 146
Parking.................................................................... 147
General Information on Radio Frequencies...................................................38
General Maintenance Information
.........314
Multi-point Inspection..................................... 320
Owner Checks and Services........................... 318
Protecting Your Investment............................ 314
Why Maintain Your Vehicle?........................... 314
Why Maintain Your Vehicle at Your Dealership?...................................................... 314
Getting Assistance Outside the U.S. and Canada..........................................................159
Getting the Services You Need
...............156
Away From Home............................................... 156
H
Handbrake See: Parking Brake............................................... 121
Hazard Warning Flashers...........................152
Headlamp Adjusting See: Adjusting the Headlamps.................... 206
370
F650750 (TBC), enUSA, First Printing Index