Engine Oil: Replacement

WARNING: This page is about a different car, the 2002 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.

Drain the engine oil by loosening engine oil drain plug.
- Non-Turbo model
  
  Fig 1: Draining Engine Oil (Non-Turbo Model)
  Courtesy of SUBARU OF AMERICA, INC.
- Turbo model
  
  Fig 2: Draining Engine Oil (Turbo Model)
  Courtesy of SUBARU OF AMERICA, INC.
Open the engine oil filler cap for quick draining of the engine oil.

Fig 3: Identifying Oil Level Gauge & Oil Fill Cap
Courtesy of SUBARU OF AMERICA, INC.
Replace the drain plug gasket.
Using a new gasket (A), tighten the engine oil drain plug (B) after draining engine oil.
Tightening torque: 44 N.m (4.5 kgf-m, 33 ft-lb)
- Non-Turbo model
  
  Fig 4: Installing Engine Oil Drain Plug (Non-Turbo Model)
  Courtesy of SUBARU OF AMERICA, INC.
- Turbo model
  
  Fig 5: Installing Engine Oil Drain Plug (Turbo Model)
  Courtesy of SUBARU OF AMERICA, INC.
Fill the engine oil through filler pipe up to upper point on level gauge. Make sure that the vehicle is placed level when checking oil level. Use engine oil of proper quality and viscosity, selected in accordance with the table in figure.
Recommended oil:

API classification; SJ or SH with the words "Energy Conserving or Energy conserving II", CCMC specification G4 or G5, ACE A specification A1, A2 or A3, or New API mark displayed on the container (If it is impossible to get SJ or SH grade, you may use SG grade.)

Engine oil capacity (Non-Turbo model):

Upper level: 4.0 l (4.2 US qt, 3.5 Imp qt)

Lower level; 3.0 l (3.2 US qt, 2.6 Imp qt)

Engine oil capacity (Turbo model):

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 6: Engine Oil Recommendation Chart
Courtesy of SUBARU OF AMERICA, INC.

The proper viscosity helps the vehicle to 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 an the engine; however, use oil having the API classification and SAE viscosity No. designated by SUBARU.

NOTE: If the vehicle is used in desert areas with very high temperatures or for other heavy duty applications, the following viscosity oils may be used: API classification: SJ or SH.

SAE Viscosity No.: 30, 40, 10W-50, 20W-40, 20W-50.
Close the engine oil filler cap.
Start the engine and warm it up for a time.
After the engine stops, recheck the oil level. If necessary, add engine oil up to upper level on level gauge.

Fig 7: Identifying Oil Level Gauge & Oil Fill Cap
Courtesy of SUBARU OF AMERICA, INC.