Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Differential Fluid Level Check
For information on Ford Color Coded Illustrations, refer to OEM COLOR CODING .
Materials
| Name | Specification |
|---|---|
| Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant XY-75W85-QL | WSS-M2C942-A |
| Motorcraft® SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL | WSP-M2C197-A |
Check
- With the vehicle in NEUTRAL, position it on a hoist. REFER to: Jacking and Lifting - Overview .
- Remove the differential fill plug.
- Check and top off the differential with differential gear lubricant. The differential gear lubricant level should be within 3mm (0.118 in.) from the fluid level fill plug opening.
Material: Motorcraft® SAE 80W-90 Premium Rear Axle Lubricant / XY-80W90-QL (WSP-M2C197-A)
Material: Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant / XY-75W85-QL (WSS-M2C942-A)
- Install the front differential fill plug.
Torque: 20 lb.ft (27 Nm)
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.