Rear axles and differentials use API GL-5 oils: SAE 90 above 0°F (-18°C) and SAE 80W below 0°F (-18°C). On models with limited slip differentials, use API GL-5 special SAE 90 lubricant.
See Figures 1 and 2
Periodic checking of the lubricant level is required at 6,000-7,500 mile (9,662-12,077 km) intervals. However, if you notice oil seepage from the rear axle, or a change in the sound of the axle, it is a good idea to check the oil level and replenish it if necessary. Any significant leaks should be repaired as soon as possible.
- Park the car on a level surface, set the parking brake and block the wheels.
- Remove the filler (upper) plug from the differential, using the proper size socket or ratchet and extension.
- Check the oil level; it should be up to the bottom of the filler hole. Add lubricant, as necessary.
- Clean the threads and reinstall the filler plug.