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Engine Oil: Replacement

WARNING: This page is about a different car, the 2004 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Open the engine oil filler cap for quick draining of engine oil.
  2. Drain the engine oil by loosening the engine oil drain plug.
    Fig 1: Identifying Engine Oil Drain Plug
    G00952673Courtesy of SUBARU OF AMERICA, INC.
  3. Replace the drain plug gasket.
  4. Tighten the engine oil drain plug after draining engine oil.

    Tightening torque: 

    44 N.m (4.5 kgf-m, 32.5 ft-lb) 

    Fig 2: Identifying Engine Oil Drain Plug
    G00952674Courtesy of SUBARU OF AMERICA, INC.
  5. Install the service hole cover.
  6. Fill engine oil through the filler pipe up to upper level on level gauge. Make sure that the vehicle is placed level when checking oil level. Use the engine oil of proper quality and viscosity, selected in accordance with the table in figure.

    Recommended oil 

    ILSAC GF-3, which can be identified with the new API certification mark (Star burst mark) API classification SL with the words "ENERGY CONSERVING" (if you cannot obtain the oil with SL grade, you may use SJ grade "ENERGY CONSERVING" oil) 

    Engine oil capacity: 

    Upper level 

    4.5 l (4.8 US qt, 4.0 Imp qt) 

    Lower level 

    3.5 l (3.7 US qt, 3.1 Imp qt) 

    Fig 3: Recommended Engine Oil Chart
    G00952675Courtesy of SUBARU OF AMERICA, INC.

    The proper viscosity helps vehicle get good cold and hot starting by reducing viscous friction and thus increasing cranking speed.

    CAUTION: When replenishing oil, it does not matter if the oil to be added is a different brand from that in the engine; however, use oil having the API classification and SAE viscosity No. designated by SUBARU.
    NOTE: If the vehicle is used in areas with very high temperatures or for other heavy duty applications, the following viscosity oils may be used: API classification: SL or SJ or SH.

    SAE Viscosity No.:30, 40, 10W-50, 20W-40, 20W-50.

  7. Close the engine oil filler cap.
  8. Start the engine and warm it up for a time.
  9. After the engine stops, recheck the oil level. If necessary, add engine oil up to the upper level on level gauge.
    Fig 4: Identifying Oil Level Gauge
    G00952676Courtesy of SUBARU OF AMERICA, INC.