FixVault

Differential Gear Oil: Replacement

  1. Lift-up the vehicle.
  2. Remove the differential gear oil drain plug using TORX® BIT T70, and drain the differential gear oil completely.
    CAUTION:
    • Immediately after the vehicle has been running, the differential gear oil is very hot. Be careful not to burn yourself.
    • Be careful not to spill differential gear oil on the exhaust pipe to prevent it from emitting smoke or causing a fire. If differential gear oil is spilled on the exhaust pipe, wipe it off completely.
  3. Replace the gasket with a new one and tighten the differential oil drain plug using the TORX® BIT T70.

    Tightening torque: 

    Copper gasket 

    70 N.m (7.2 kgf-m, 51.7 ft-lb) 

    Aluminum gasket 

    44 N.m (4.5 kgf-m, 32.5 ft-lb) 

    Fig 1: Identifying Differential Oil Drain Plug
    G04994038Courtesy of SUBARU OF AMERICA, INC.
  4. Lower the vehicle.
  5. Pour differential gear oil from the gauge hole into the differential.

    Recommended gear oil: 

    <Ref. to SPECIFICATION  GENERAL DESCRIPTION. >

    Gear oil capacity: 

    1.1 - 1.3 (1.2 - 1.4 US qt, 1.0 -1.1 Imp qt) 

  6. Check the level of differential gear oil.

    <Ref. to INSPECTION  DIFFERENTIAL GEAR OIL. >