2018 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Engine Oil: Replacement

CAUTION: If the engine oil is spilled over exhaust pipe or the under cover, wipe it off with cloth to avoid emission of smoke or causing a fire.
  1. Open the oil filler cap for quick draining of engine oil.
  2. Lift up the vehicle.
  3. Drain engine oil by loosening the drain plug.
    NOTE: Prepare the container for draining of engine oil.
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  4. After draining the engine oil, tighten the engine oil drain plug.
    NOTE: Use a new drain plug gasket.

    Tightening Torque: 

    41.7 N.m (4.3 kgf-m, 30.8 ft-lb)

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  5. Lower the vehicle.
  6. Select engine oil of adequate quality and viscosity and fill it through the chain cover 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 LUBRICATION (EXCEPT FOR STI)>General Description>SPECIFICATION .

    Engine oil capacity:

    Refer to "SPECIFICATION" for engine oil capacity. Ref. to LUBRICATION (EXCEPT FOR STI)>General Description>SPECIFICATION .

  7. Close the oil filler cap.
  8. Start the engine to circulate the oil in engine.
  9. Stop the engine and pull out the oil level gauge, and check both sides of the oil level gauge. Use a lower side to check the engine oil level. If necessary, add engine oil up to the "F" line on oil level gauge.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.