Fluid
Ford Part
Name
Application
Capacity
Front axle
lubricant
Motorcraft SAE
80W-90
Premium Rear
Axle Lubricant
4 x 4 vehicles
3.5-3.7 pints
(1.8-2.0L)
Rear axle
lubricant
4
Motorcraft SAE
75W-140
Synthetic Rear
Axle Lubricant
Conventional
differential
(9.75 inch axle)
4.5 pints (2.13L)
Windshield
washer fluid
Motorcraft
Premium
Windshield
Washer
Concentrate
All
4.5 quarts
(4.1L)
1
Ensure the correct automatic transmission fluid is used. 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
威
, MERCON
威
V and MERCON
威
SP are not
interchangeable. DO NOT mix MERCON
威
MERCON
威
V and
MERCON
威
SP. Use of dual usage fluids in an automatic
transmission application requiring MERCON
威
SP may cause
transmission damage. Use of any fluid other than the
recommended fluid may cause transmission damage.
2
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.
3
Add the coolant type originally equipped in your vehicle.
4
Your vehicle’s rear axle is filled with a synthetic rear axle lubricant and
is considered lubricated for life. These lubricants are not to be checked
or changed unless a leak is suspected, service is required or the axle has
been submerged in water. The axle lubricant should be changed any time
the axle has been submerged in water.
5
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 Navigator
(nav)
Owners Guide (post-2002-fmt)
USA
(fus)
Maintenance and Specifications
378