LEVEL CHECK

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.

1. Park the car on a level surface, set the parking brake and block the wheels.

   Fig. 1: Common rear axle housing showing drain plug "A'' and filler plug "B''

   Fig. 2: Checking rear differential fluid level — 323 with 4WD, 929 and RX-7

2. Remove the filler (upper) plug from the differential, using the proper size socket or ratchet and extension.
3. Check the oil level; it should be up to the bottom of the filler hole. Add lubricant, as necessary.
4. Clean the threads and reinstall the filler plug.
5. Unblock the wheels.