Ford 2006 F-350 Owner's Manual page 292

Maintenance and Specifications
Ford part name
Item
or equivalent
Automatic Motorcraft
transmission MERCON SP
TorqShift ATF
(5–speed)
Motorcraft
Premium
Windshield
Windshield
washer fluid
Washer
Concentrate
1
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.
292
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Ford part
number
XT-6–QSP
2
ZC-32–A
Ford
specification
MERCON SP
WSB-M8B16–A2