2006 FORD F250 SUPER DUTY service interval

If an overfill occurs, excess fluid
should be removed by a qualified
technician.
An overfill condition of
transmission fluid may cause shift and/or engagement concerns
and/or possible damage.
Do not use supplemental transmission fluid additives, treatments or
cleaning agents. The use of these materials may affect transmission
operation and result in damage to internal transmission components.
Automatic transmission fluid filter (if equipped)
The TorqShift automatic
transmission is equipped with a
serviceable external fluid filter
mounted on the frame rail. Refer to
the scheduled maintenance
information for service intervals.
To replace the transmission filter:
1. Shut off the engine.
2. Unscrew filter housing.
3. Replace filter with a new authorized Motorcraft filter element. Refer to
the Motorcraft part numbers chart in this chapter.
4. Reinstall housing and check transmission fluid level using procedure in
this section.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus) Maintenance and Specifications
281

3
Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick handle. Check the
container to verify the fluid being added is of the correct type. Refer to
your scheduled maintenance information to determine the correct
service interval.
MERCON  , MERCON  V and MERCON  SP are not
interchangeable. DO NOT mix MERCON  , MERCON  V and
MERCON  SP. Use of dual usage fluids in an automatic
transmission application requiring MERCON  SP may cause
transmission damage. Use of a transmission fluid other than the
recommended fluid may cause transmission damage. 4
Service refill capacity is determined by filling the transmission to the
bottom of the filler hole with the vehicle on a level surface. The 6–speed
manual transmission is equipped with an in-tank cooler. Verify the fluid
level after operating vehicle to ensure correct fluid level. 5
Indicates only approximate dry-fill capacity. Some applications may vary
based on cooler size and if equipped with an in-tank cooler. The amount
of transmission fluid and fluid level should be set by the indication on
the dipstick’s normal operating range. 6
Use 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.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus) Maintenance and Specifications
289

Item Ford part name
or equivalent Ford part
number Ford
specification
Automatic
transmission
TorqShift
(5–speed) Motorcraft
MERCON  SP
AT F 2
XT-6–QSP MERCON  SP
Windshield
washer fluid Motorcraft
Premium
Windshield
Washer
Concentrate ZC-32–A WSB-M8B16–A21
Add 8 oz.(236 ml) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of limited
slip axles. Ford design rear axles contain a synthetic lubricant that does
not require changing unless the axle has been submerged in water. Dana
rear axles also contain a synthetic lubricant but do require a change.
Refer to your scheduled maintenance information for change intervals
on Dana rear axles. 2
Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick handle. Check the
container to verify the fluid being added is of the correct type. Refer to
your scheduled maintenance information to determine the correct
service interval.
MERCON  , MERCON  V and MERCON  SP are not
interchangeable. DO NOT mix MERCON  , MERCON  V and
MERCON  SP. Use of dual usage fluids in an automatic
transmission application requiring MERCON  SP may cause
transmission damage. Use of a transmission fluid other than the
recommended fluid may cause transmission damage.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)Maintenance and Specifications
292