LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Manual Transaxle & Differential (TY85) (STI)) >> Transmission Gear Oil >> Replacement

Transmission Gear Oil: Replacement

WARNING: This page is about a different variant/trim than selected.
  1. Lift up the vehicle.
  2. Remove the filler plug.
    Fig 1: Identifying Filler Plug
    G10268961Courtesy of SUBARU OF AMERICA, INC.
  3. Remove the two drain plugs (oil pan side, clutch housing side), and then drain the transmission gear oil completely.
    CAUTION:
    • Immediately after running the vehicle or after idling for a long time, the transmission gear oil will be hot. Be careful not to receive burns.
    • Be careful not to spill the transmission gear oil on exhaust pipe to prevent it from emitting smoke or causing fires. If transmission gear oil is spilled on the exhaust pipe, wipe it off completely.
    NOTE:
    • Tighten the drain plug of the transmission gear oil after draining the transmission gear oil.
    • Always use a new gasket.
    • Use TORX® bit T70 to remove and install the drain plug on clutch housing side.

    Tightening torque: 

    Oil pan side 

    50 N.m (5.1 kgf-m, 36.9 ft-lb) 

    Clutch housing side 

    70 N.m (7.1 kgf-m, 51.6 ft-lb) 

    Fig 2: Identifying Drain Plug (Oil Pan Side)
    G10268962Courtesy of SUBARU OF AMERICA, INC.
  4. Pour transmission gear oil to the bottom end of filler plug.
    NOTE: Carefully refill transmission gear oil while checking the level. Excessive or insufficient oil must be avoided.

    Recommended oil: 

    GL-5 (75W-90) or equivalent 

    Transmission gear oil capacity 

    4.1 L (4.3 US qt, 3.6 Imp qt) 

  5. Check the level of the transmission gear oil.
  6. Using a new gasket, and tighten the filler plug.

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb)