
Inspect air intake piping
•Check for accumulation of salt deposits (where applicable). If present,
disassemble and clean the complete air intake piping system. If the
intake piping is pitted, use RTV silicone to seal joints against leakage.
•Check for loose hoses and clamps.
•Check for ruptured or collapsed hoses.
•Check air cleaner housing for cracks.
ELECTRICAL SYSTEM INSPECTIONS
Periodically inspect electrical connectors on the outside of the cab, on
the engine and frame for corrosion and tightness. Exposed terminals
such as the fuel sender, cranking motor, alternator and feed-through
studs should be cleaned and re-coated with a lubricant sealing grease
such as Motorcraft XG-3, or equivalent. This should include the ground
cable connector for batteries, engine and cab as well as the jump starting
stud.
Accessory feed connections
Vehicle electrical systems are complex and often include electronic
components such as engine and transmission controls, instrument panels,
ABS, etc. While most systems operate on battery voltage (12 volts),
some systems can be as high as 90 volts or as low as five volts. Refer to
the Electrical Circuit Diagram Manuals, available from your vehicle’s
manufacturer, to assure that any additional body lights and accessories
are connected to circuits that are both appropriate and not overloaded.
No modification should be made to any vehicle control system without
first contacting your dealer.
SUSPENSION INSPECTION
Note:Do not adjust air suspension height to any setting other than the
specified setting. Altering the height setting will change the driveline
angle and may result in unwarrantable component damage, such as
transmission component damage.
Verify drive axle air suspension height and height control valve
performance at engine lube oil change intervals.
Periodically:
•Check condition of spring leaves for evidence of fatigue, bending or
breakage.
•Check condition of suspension mounting brackets and bushings.
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USA English(fus)
Maintenance and specifications
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LUBRICATION AND MAINTENANCE INTERVALS
New vehicles are lubricated at the factory. After the vehicle is placed in
operation, regular lubrication intervals, based on the type of service and
road conditions, should be established. Thorough lubrication at the
specified intervals will insure outstanding life cycle value and will reduce
overall expense.
The lubrication intervals specified should be performed at whatever
interval occurs first, whether it is months, kilometer (miles) or hours.
Only lubricants of superior quality, such as Motorcraft lubricants, should
be used. The use of inferior products will reduce the service life of the
vehicle or result in failure of its components.
Unless otherwise specified, never add lubricant unless it is the same
grade as that which is already being used. If the grade is not known or
not available, drain, flush and refill with new lubricant.
The interval between lubrication periods, oil changes, etc. depends
entirely upon operating conditions. The loads carried, speeds, road and
weather conditions all contribute to the frequency of lubrication periods.
In some types of operation, and where operating conditions are
extremely severe (such as in deep water, mud or unusually dusty
conditions), the vehicle may require lubrication after every 24 hours of
operation.
Maintenance intervals
Maintenance intervals are provided for three types of general vehicle
environments: On-Highway, City and Severe Service. In all applications,
the actual interval is determined by monitoring kilometers (miles) and
time and when the engine is due for an oil change. When the engine oil
change is required prior to the truck lubrication interval, it is
recommended that the lubrication be performed at the same time in
order to reduce your vehicle’s time out of service.
•On-Highway:96,000 km (60,000 miles) or more annually.
•City:95,000 km (59,000 miles) or less annually.
•Severe Service:32,000 km (20,000 miles) or less annually on/off
road in dirty conditions.
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
206

Component /
Component vendorLubrication type Vendor
recommendations:
Viscosity / Ambient
temperature / NotesEquivalent Ford
part name / number
Clutch
Release bearing /
shafts / forkGC/LB NLGI #2
lithium
complex-based moly
grease or
multi-purpose
lithium complex
grease—Motorcraft Premium
Long Life Grease /
XG-1-C
Cooling system
Coolant - 6.0L Power
Stroke engineWSS-M97B51-A1—Motorcraft Premium
Gold Engine Coolant
/ VC-7-A
Coolant - Cummins
B and Caterpillar
enginesRefer to engine operator manual
Windshield washer
Washer fluid WSB-M8B16-A2—Motorcraft Premium
Windshield Washer
Concentrate /
ZC-32-A
Transmission
Eaton-Fuller Petroleum oil:
Engine oil API-SL or
API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50:–12°C
(above 10°F)—
SAE 40:–12°C
(below 10°F)—
Mineral gear oil:
API-GL-1 (rust and
oxidation inhibited)SAE 80W–90:–12°C
(above 10°F)—
SAE 75W:–12°C
(below 10°F)—
Synthetic oil:
Eaton, Roadranger
synthetic CD-50
transmission fluidCD SAE 50: All
temperatures—
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
210

Component /
Component vendorLubrication type Vendor
recommendations:
Viscosity / Ambient
temperature / NotesEquivalent Ford
part name / number
Spicer
(non-synchronized)
(lubricants are listed
in order of
preference)Petroleum oil:
Engine oil API-SL or
API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50:–18°C
(above 0°F)—
SAE 40:–18°C
(below 0°F)—
Mineral gear oil:
API-GL-1 (rust and
oxidation inhibited)
(EP gear oils are not
acceptable)SAE 90:–18°C
(above 0°F)—
SAE 80:–18°C
(below 0°F)—
Synthetic oil:
Synthetic Engine Oil
meeting
MIL-L-2104E or
MIL-L-46152E,
API-SL or API-CFCD SAE 50: All
temperatures—
Spicer
(synchronized)
(lubricants are listed
in order of
preference)Petroleum oil:
Engine oil API-SL or
API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50:–12°C
(above 10°F)—
SAE 40:–12°C
(below 10°F)—
Mineral gear oil:
API-GL-1 (rust and
oxidation inhibited)SAE 90:–12°C
(above 10°F)—
SAE 80W:–12°C
(below 10°F)—
Spicer
(synchronized)
(cont’d)Synthetic oil:
Synthetic Engine Oil
meeting
MIL-L-2104E or
MIL-L-46152E,
API-SL or API-CFSAE 50: All
temperatures—
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
211

Component /
Component vendorLubrication type Vendor
recommendations:
Viscosity / Ambient
temperature / NotesEquivalent Ford
part name / number
Meritor Petroleum oil: Heavy
Duty Engine Oil
MIL-L-2104E or
API-SL or API-CF
(previous API
designations
acceptable)SAE 50:–12°C
(above 10°F)—
SAE 40:–12°C
(above 10°F)—
SAE 30:–12°C
(below 10°F)Motorcraft SAE 30
Super Duty Motor
Oil / XO-30-QSD
Mineral gear oil with
rust and oxidation
inhibitor API-GL-1*
(* Do not use
multi-weight and
GL-5 EP gear oils;
they may cause
transmission failure
or damage.)SAE 90:–12°C
(above 10°F)—
SAE 80:–12°C
(below 10°F)—
Synthetic oil:
MIL-L-2104E or
MIL-L-46152D (* Do
not use multi-weight
and GL-5 EP gear
oils; they may cause
transmission failure
or damage.)—SAE 50: All
temperatures—
Allison Refer to
transmission manual——
Rear axle
Eaton-Spicer -
two-speed axlesRHEOLUBE 362 (or
equivalent) (Eaton
part number
113741)——
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
212

Component /
Component vendorLubrication type Vendor
recommendations:
Viscosity / Ambient
temperature / NotesEquivalent Ford
part name / number
Cab latch pivots;
Door check, hinges,
latches and strikers;
Seat adjuster slidesGC/LB NLGI #2
lithium
complex-based moly
grease (or
equivalent) or
multi-purpose
lithium complex
grease—Motorcraft Premium
Long Life Grease /
XG-1-C
Cab latch pivot pins Light engine oil—Motorcraft SAE
5W-30 Super
Premium Motor Oil /
XO-5W30-QSP
Door lock cylinders Lock oil—Motorcraft
Penetrating and
Lock Lubricant /
XL-1
Door window
regulatorsNGLI #2
multipurpose lithium
complez grease—Motorcraft
Multi-Purpose
Grease Spray / XL-5
or Motorcraft
Multi-Purpose
Grease / XG-4
Weatherstripping Silicone lubricant—Motorcraft Silicone
Spray / XL-6
Engine oil
6.0L Power Stroke
engineAPI CI-4 / SL SAE 15W–40 above
–12°C (10°F)Motorcraft SAE
15W-40 Super Duty
Motor Oil /
XO-15W40-QSD
SAE 10W-30–23°C
to 32°C(–10°Fto
90°F)Motorcraft SAE
10W-30 Super Duty
Motor Oil /
XO-10W30-QSD
SAE 0W–30 below
–18°C(0°F)Motorcraft SAE
0W-30 Super All
Season Motor Oil /
XO-0W30-LAS
Cummins B and
Caterpillar enginesRefer to engine operator manual
Brake fluid
All vehicles DOT 3,
ESA-M6C25–A—Motorcraft High
Performance Motor
Vehicle Brake Fluid /
PM-1
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
216

Engine coolant and oil
Engine type Engine coolant
(approximate
capacity)Engine oil
(approximate
capacity)
6.0L Power Stroke 25.7L (54.4 pints) 18.0L (19 quarts)
Caterpillar 28.4 (60.0)
1
Cummins B 23.1 (24.4)1
1Refer to the engine operator manual for engine oil refill capacities.
Power steering system
Steering gearPower steering fluid volume (cubic
inches/liters/pints)
V8 engine
TAS40 steering gear 506/8.3/17.6
TAS65 steering gear 533/8.7/18.4
Transmission
Description Liters Pints
MD-3060P 5–speed automatic 27.4 58.01
MD-3560P 5–speed automatic 27.4 58.01
MD-3060P 6–speed automatic 27.4 58.01
FS-4205A 5–speed manual 5.4 11.5
MD-3066P 6–speed automatic 27.4 58.01
FS-5406A 6–speed manual 9.2 19.5
FS-5406N 6–speed manual 9.2 19.5
MD-3560P 6–speed automatic 27.4 58.0
1
2000P Series 5–speed automatic 18.0 38.01
2400 Series 5–speed automatic 18.0 38.01
FS-5205A 5–speed manual 5.9 12.5
FS-6406N 6–speed manual 9.2 19.5
FS-6406A 6–speed manual 9.2 19.5
ES066–7B 7–speed manual 9.9 20.9
ES56–7B 7–speed manual 9.9 20.9
FR-9210B 10–speed manual 11.1 23.5
RT–8908LL 10–speed manual 13.2 28.0
1Total fluid capacity (dry transmission and torque converter).
2004 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
218

OWNER MAINTENANCE
You can do much of the maintenance your vehicle requires yourself, if
you have the time and a reasonable amount of mechanical ability. If you
prefer to have this work done professionally, your authorized dealer
stands ready to help you.
All mechanical components and attachments are important in that they
could affect the performance of vital components and systems. If
replacement becomes necessary, they must be replaced with parts having
the same part number or with equivalent parts. Torque values of the
attaching parts must be used as specified during any reassembly
procedure to assure proper retention.
EMISSIONS CONTROL SYSTEM
To assure the emissions control systems operate effectively, you should
have the services listed in the maintenance schedule performed at the
specified time and km/mileage intervals. You should avoid running out of
fuel or turning off the ignition while the vehicle is in motion, especially
at high speeds.
Because of high engine compartment and exhaust system
temperatures resulting from emissions equipment, do not park,
idle or operate your vehicle in dry grass or other dry ground cover
where the possibility of ground fire exists.
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/or 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 your dealer. Be alert for fluid leakage,
odor, smoke, loss of oil pressure, or charge indicator or over temperature
warning.
Do NOT use diesel fuel blended with waste oil in engines equipped with
a catalytic converter-muffler. Waste lube oil blending in fuel will plug the
catalytic converter-muffler, resulting in a significant loss of engine power.
2004 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
223