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Home >> Subaru >> 2015 >> WRX STI Limited >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System (STI) >> Engine Oil >> Replacement

Engine Oil: Replacement

CAUTION: If the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emission of smoke or causing a fire.
  1. Open the engine oil filler cap for quick draining of engine oil.
  2. Lift up the vehicle.
  3. Drain engine oil by loosening the engine oil drain plug.
    NOTE: Prepare the container for draining of engine oil.
    Fig 1: Locating Drain Plug
    G05659291Courtesy of SUBARU OF AMERICA, INC.
  4. Tighten the engine oil drain plug after draining engine oil.
    NOTE: Use a new drain plug gasket.

    Tightening torque: 

    46.5 N.m (4.7 kgf-m, 34.3 ft-lb) 

    Fig 2: Locating Drain Plug
    G05659291Courtesy of SUBARU OF AMERICA, INC.
  5. Lower the vehicle.
  6. Using engine oil of proper quality and viscosity, fill engine oil through the filler duct to the "F" line on the oil level gauge. Make sure that the vehicle is parked on a level surface when checking oil level.

    Recommended oil: 

    Refer to "SPECIFICATION" for recommended oil. <Ref. to  SPECIFICATION  , General Description.> 

    Engine oil capacity: 

    Refer to "SPECIFICATION" for engine oil capacity. <Ref. to  SPECIFICATION  , General Description.> 

  7. Close the engine oil filler cap.
  8. Start the engine to circulate the oil in engine.
  9. After stopping the engine, recheck the oil level. If necessary, add engine oil up to the "F" line on oil level gauge.
Fig 3: Checking Engine Oil Level
G10265604Courtesy of SUBARU OF AMERICA, INC.