FORD 2006 F-150 v.3 - Manual (Page 315)

5 Your vehicle’s rear axle is filled with a synthetic rear axle lubricant and
is considered lubricated for life. These lubricants do not need to be
checked or changed unless a leak is suspected, service is required or the
axle assembly has been submerged in water. The axle lubricant should
be changed any time the rear axle has been submerged in water.
6 Service refill capacity is determined by filling the axle to 1/4-9/16 inch
(6-14 mm) below the bottom of the filler hole with the vehicle on a level
surface.
Add 4 oz. (118 ml) of Additive Friction Modifier XL–3 or equivalent
meeting Ford specification EST-M2C118–A, for complete fill of 8.8 inch
and 9.75 inch Traction-Lok axles.
7 Service refill capacity is determined by filling the axle to the bottom of
the filler hole with the vehicle on a level surface.
For 10.25 inch Traction-Lok axles, use 6.5 pints (3.1L) of Motorcraft SAE
75W-140 Synthetic Rear Axle Lubricant and 8 oz. (236 ml) of Additive
Friction Modifier XL–3 or equivalent meeting Ford Specification
EST-M2C118-A.
8 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.
LUBRICANT SPECIFICATIONS
Item
Ford part
name or
equivalent
Ford part number
Ford
specification
Front axle
(4X4)
Motorcraft SAE
80W-90
Premium Rear
Axle Lubricant
XY-80W-90-QL WSP-M2C197-A
Rear axle
Motorcraft SAE
75W-140 Rear
Axle Lubricant
(synthetic) 1
XY-75W140-QL WSL-M2C192-A
2006 F-150 (f12)
Owners Guide (post-2002-fmt)
USA (fus)
Maintenance and Specifications
315