Engine Oil: Replacement

NOTE: Replace engine oil and engine oil filter at the same time.

Drain engine oil by loosening engine oil drain plug.

Fig 1: Loosening Engine Oil Drain Plug
Courtesy of SUBARU OF AMERICA, INC.
Open engine oil filler cap for quick draining of the engine oil.

Fig 2: Identifying Engine Oil Level
Courtesy of SUBARU OF AMERICA, INC.
Replace drain plug gasket.
Tighten engine oil drain plug after draining engine oil.
Tightening torque:

44 N.m (4.5 kgf-m, 33 ft-lb)
Fill engine oil through filler pipe up to upper point on level gauge. Make sure that vehicle is placed level when checking oil level. Use engine oil of proper quality and viscosity, selected in accordance with the table shown in Fig 3.
Engine oil amount for preparation:

Approx. 4.0 l (4.2 US qt, 3.5 Imp qt)

Fig 3: Engine Oil SAE Viscosity Chart
Courtesy 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.
NOTE:
- 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 ILSAC or API classification, and SAE viscosity No. designated by SUBARU.
- If 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: SL
  
  ILSAC classification: GF-3
  
  SAE Viscosity No.: 30, 40, 10W-50, 20W-40, 20W-50
Close engine oil filler cap.
Start engine and warm it up for a time.
After engine stops, recheck the oil level.
If necessary, add engine oil up to upper level on level gauge.

Fig 4: Identifying Engine Oil Level
Courtesy of SUBARU OF AMERICA, INC.