Navigator 4WD V8-5.4L (2010)
Fluid - Differential: Fluid Type Specifications
Ford Part Name
Front Axle ........................................................................................................................................... Motorcraft SAE 80W-90 Premium Rear Axle Lube
Rear Axle ........................................................................................................................................ Motorcraft SAE 75W-140 Synthetic Rear Axle Lube*
Ford Part Number
Front Axle ................................................................................................................................................................................................... XY-80W90-QL
Rear Axle .................................................................................................................................................................................................. XY-75W140-QL
Ford Part Specification
Front Axle ................................................................................................................................................................................................ WSP-M2C197-A
Rear Axle ................................................................................................................................................................................................. WSL-M2C192-A
*Note: 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.
