Ford 1998 Expedition Owner's Manual page 193

Fluid
Rear axle
4
lubricant
Windshield
washer fluid
1
Ensure the correct automatic transmission fluid is used for a specific
application. Check the container to verify the fluid is MERCON
approved. Transmission fluid requirements are indicated on the dipstick
handle. Refer to the Scheduled Maintenance Guide.
Do NOT use any non-approved automatic transmission fluid for an
application specifying MERCON . Use of a non-approved fluid may cause
internal transmission component 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
Use Ford Premium Engine Coolant (green in color). DO NOT USE Ford
Extended Life Engine Coolant (orange in color). Refer to Adding engine
coolant, in the Maintenance and Care chapter.
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. Add 118 ml (4 oz.) of additive
friction modifier C8AZ-19B546–A, Ford specification EST-M2C118–A for
complete refill of Traction-Lok axles.
Service refill capacities are determined by filling the rear axle 6 mm to
14 mm (1/4 inch to 9/16 inch) below the bottom of the filler hole.
Capacities and specifications
Ford Part
Name
Motorcraft SAE
75W140
Synthetic Rear
Axle Lubricant
Ultra-Clear
Windshield
Washer
Concentrate
Application
All
All
Capacity
2.9-3.1L
(5.5-5.8 pints)
4.1L
(4.5 quarts)
193