System Specifications

Ford Part Name
- Motorcraft SAE 80W-90 Premium Rear Axle Lubricant

Ford Part Number
- XY-80W90-QL

Ford Specification
- WSP-M2C197-A

Note: 4WD vehicles exposed for prolonged periods to temperatures less than -40 Celsius (-40 Fahrenheit) should change out the rear axle fluid to Motorcraft SAE 75W-140 Rear Axle Lubricant, Ford part number XY-75W-140-QL meeting Ford specification WSL-M2C192-A.