
Engine coolant and oil
Engine type Engine coolant
(approximate capacity)Engine oil
(approximate capacity)
6.0L Power Stroke 54.4 pints (25.7L) 19.0 quarts (18.0L)
Caterpillar 60.0 pints (28.4L)
1
Cummins B 48.8 pints (23.1L)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 Pints Liters
MD-3060P 5–speed automatic 58.0127.4
MD-3560P 5–speed automatic 58.0127.4
MD-3060P 6–speed automatic 58.0127.4
FS-4205A 5–speed manual 11.5 5.4
MD-3066P 6–speed automatic 58.0
127.4
FS-5406A 6–speed manual 19.5 9.2
FS-5406N 6–speed manual 19.5 9.2
MD-3560P 6–speed automatic 58.0
127.4
2000P Series 5–speed automatic 38.0118.0
2400 Series 5–speed automatic 38.0118.0
FS-5205A 5–speed manual 12.5 5.9
FS-6406N 6–speed manual 19.5 9.2
FS-6406A 6–speed manual 19.5 9.2
ES066–7B 7–speed manual 20.9 9.9
ES56–7B 7–speed manual 20.9 9.9
FR-9210B 10–speed manual 23.5 11.1
RT–8908LL 10–speed manual 28.0 13.2
1Total fluid capacity (dry transmission and torque converter).
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
223 

Air conditioner refrigerant - r134a
Lbs. (Kg) Oz.
1.87 (.85) 30
Note:This system uses PAG-type refrigerant oil.
Refrigerant fitting torque
Captured washer nut: 170–190 inch lbs. (19–21 N•m)
Note:This system uses mineral based refrigerant oil to lubricate o-rings
and fittings.
Fuel tanks
Standard tanks are listed as such; all other tanks available for your
vehicle are optional equipment.
Vehicle Tank type Gallsons Liters
F-650 Low Profile
(standard), F-650
Dock HeightSingle, steel
rectangular35 132
F-650 Low Profile,
F-650 Dock Height
(standard), F-750
Pick-up and
Delivery
(standard), F-750
Severe Service
(standard)Single, steel
rectangular45 170
F-650 Dock Height,
F-750 Pick-up and
Delivery, F-750
Severe ServiceSingle, steel
rectangular50 189
F-650–Low Profile,
F-650 Dock Height,
F-750 Pick-up and
Delivery, F-750
Severe ServiceSingle, steel
rectangular65 246
F-650 Dock Height,
F-750 Pick-up and
Delivery, F-750
Severe ServiceSingle, steel D-style 65 246
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
224 

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.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
228 

Emissions control system(s) laws
Federal law prohibits vehicle manufacturers, dealers and other persons
engaged in the business of repairing, servicing, selling, leasing or trading
motor vehicles, as well as fleet operators from knowingly removing or
rendering an emissions control device or system inoperative. Further,
modifications of the emissions control system(s) could create liability on
the part of individual owners under the laws of some states. In Canada,
modification of the emissions control system could create liability under
applicable Federal or Provincial laws.
NOISE EMISSIONS WARRANTY, PROHIBITED TAMPERING ACTS
AND MAINTENANCE
On January 1, 1978, Federal regulations became effective governing the
noise emissions on trucks over 10,000 lbs. (4,536 kg) GVWR. The
following statements concerning prohibited tampering acts and
maintenance and the noise warranty are found in the Warranty Guide,
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:
Vehicle System Acts
Acoustical Shielding Removal of noise shields, hood
blanket, tunnel liner or acoustical
absorptive material.
Engine Removal or rendering inoperative
the engine speed governor so as to
allow engine speed to exceed
manufacturer specifications.
Removal of engine mounted noise
shield or oil pan enclosure.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
229 

SCHEDULED MAINTENANCE SERVICES
Maintenance service adjustments must conform to specifications
contained in this manual, and those shown on the Important Engine
Information Decal. The following services are to be performed at
scheduled intervals because they are considered essential to the life and
performance of your vehicle. Ford recommends that you perform
maintenance on all designated items to achieve best vehicle operation.
Scheduled maintenance beyond 100,000 miles (161,000 km) should be
continued as before 100,000 miles (161,000 km).
SPECIAL OPERATING CONDITIONS
If your driving habitsfrequentlyinclude one or more the following
conditions:
•Short trips oflessthan 10 miles (16 km) when outside temperatures
remain below freezing.
•Operating duringhot weatherin stop-and-go“rush hour”traffic.
•Operating in severe dust conditions.
•Extensive idling, or low speed operation such as door-to-door delivery
service.
•High speed operation with a fully loaded vehicle (maximum GVW).
•Snowplowing.
Perform the following:
•Change engine oil and oil filter every three months, 5,000 miles (8,000
km) or 125 hours of engine service.
•If operating in severe dust conditions, replace the air cleaner filter
more often than regular intervals as determined by the air filter
restriction indicator. Make sure that the air filter restriction indicator
is in good working order.
•Lube the manual transmission and the rear axle every 30,000 miles
(48,279 km) or six months, whichever comes first.
•See the Allison, Cummins and Caterpillar Operator’s Manual.
AIR BRAKE ADJUSTMENT
Failure to maintain proper air brake adjustment can result in
reduction or loss of braking ability.
Air brake inspection and adjustment should be performed by a qualified
service technician in accordance with the instructions in the Ford Truck
Service Manual.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
231 

Daily Owner
ChecksEngine system
Check the air filter restriction indicator
Check the engine oil
Inspect the coolant level - for Power Stroke engine (for
Caterpillar and Cummins engines, refer to the Owner’s Manual)
Brake system
Drain the air brake system reservoir - manual valve
Check the air brake system reservoir automatic drain valve
operation
Transmission system
Visually check the automatic transmission for fluid leakage
Steering system
Check the power steering pump fluid level and check the system
for leaks
Check the entire vehicle for evidence of fluid leaks
U.S. Department of Transportation, Federal Highway
Administration requirements (ensure that the entire
system is functioning properly)
Check the service brakes
Check the parking brake
Check the steering mechanism
Check the lighting devices and reflectors
Check the tires
Check the horn
Check the windshield wipers
Check the rear vision mirrors
Check the wheels and rims
Check the emergency equipment
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
234 

Check every oil
changeOil
change intervals
are as follows:
Power Stroke -
10,000 ;
Caterpillar -
15,000 ;
Cummins -
15,000 (refer to
the Caterpillar
and Cummins
service manuals
for further
instructions and
information)Engine system
Check the engine cooling system - hoses, clamps and protection
Inspect the drive belts
Exhaust system
Inspect the entire exhaust system (including the inlet pipe(s),
muffler(s), outlet pipe(s), clamps and fasteners) for holes,
leakage, breakage, corrosive damage and separation from other
components. Adjust, service or replace with the same or the
equivalent part. (Also a noise emission control service)
Suspension system
Tighten the front and rear spring U-bolts to the specified torque
Driveline and rear axle system
Lubricate the U-joints and the slip yoke
Brake system
Lube the air brake foot control valve, hinge and roller
Inspect the drum brake linings through the inspection holes
Lubricate the brake camshafts (air brakes)
Lubricate the brake slack adjuster (air brakes)
Lubricate rear caliper slide rails
Inspect the disc brake pads and the piston boots (hydraulic
brakes)
Clutch system
Lubricate the clutch release cross shaft and all linkages
Check the clutch fluid
Fuel system
Drain the accumulated water or sediment from the fuel tank(s)
Steering system
Lubricate the steering shaft(s), U-joints and splines when
equipped with grease fittings
Lubricate the front axle spindle pins
Lubricate the steering linkage when equipped with grease
fittings
Grease the power steering gear output shaft
* Coolant protection checks should be made just prior to the onset of freezing
weather, where applicable. If coolant is dirty or rusty in appearance, the system
should be drained, flushed and refilled with the prescribed solution of cooling
system fluid and water. Use only permanent type coolant that meets Ford
specifications WSS-M97B51-A1. See the engine manufacturer’s operating guide for
supplemental corrosion inhibitor specifications.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
235 

In addition to the items to be performed daily or at each oil change, the
following need to be completed as specified:
Maintenance Operation                                 Frequency — ObservationClean body/door drain holes.
Clean windshield wiper blades.
Replace windshield wiper blades.
Lubricate body lock cylinders, door and hood hinges.
Check headlamp alignment.
Check windshield washer fluid level. Add fluid if required.At least twice annually.
As required.
If wiping the blades with a clean cloth and mild detergent 
and washing the windshield with a cleaner does not restore 
a clean wipe.
Difficult to operate or noisy.
Lamp beams in wrong position when vehicle operating
loaded.
If washers do not spray fluid when operated. GENERAL MAINTENANCE SERVICES
Listed below are vehicle checks that should be made periodically either by the owner or a qualified technician. It is recommended
that deficiencies be brought to the attention of your dealer or another qualified service outlet as soon as possible in order that 
advice regarding the need for service or replacement can be obtained.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
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