Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Engine Lubrication System (2.0L): General Description: Specification
| Lubrication method | Forced lubrication | ||||||
|---|---|---|---|---|---|---|---|
| Oil pump | Pump type | Trochoid type | |||||
| Number of teeth | Inner rotor | 11 | |||||
| Outer rotor | 12 | ||||||
| Outer rotor diameter x Thickness | mm (in) | 77 x 14 (3.03 x 0.55) | |||||
| Performance (Oil temperature 120°C (248°F)) | 600 r/min | Discharge pressure | kPa (kg/cm2 , psi) | 35 (0.4, 5.1) | |||
| Discharge rate | L (US qt, Imp qt)/min | 7.4 (7.8, 6.5) or more | |||||
| 6, 700 r/min | Discharge pressure | kPa (kg/cm2 , psi) | 321 (3.3, 46.6) | ||||
| Discharge rate | L (US qt, Imp qt)/min | 60.2 (63.6, 53.0) or more | |||||
| Relief valve working pressure | kPa (kg/cm2 , psi) | 700 (7.1, 102) | |||||
| Oil filter(1) | Filter type | Full-flow filter type | |||||
| Filtration area | cm2 (sq in) | 900 (139.5) | |||||
| By-pass valve opening pressure | kPa (kg/cm2 , psi) | 160 (1.6, 23.2) | |||||
| Outer diameter x Width | mm (in) | 80 x 65 (3.15 x 2.55) | |||||
| Installation screw specifications | M 20 x 1.5 | ||||||
| Oil pressure switch | Type | Immersed contact point type | |||||
| Operating voltage | 12 V | ||||||
| Warning light operating pressure | kPa (kg/cm2 , psi) | 14.7 (0.1, 2.1) | |||||
| Proof pressure | kPa (kg/cm2 , psi) | 981 (10, 142.2) | |||||
| Engine oil | Total capacity (at overhaul) | L (US qt, Imp qt) | 6.0 (6.3, 5.3) | ||||
| When replacing engine oil and oil filter | L (US qt, Imp qt) | 5.1 (5.4, 4.5) | |||||
| When replacing engine oil only | L (US qt, Imp qt) | 4.9 (5.2, 4.3) | |||||
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Specified oil:
CAUTION:
- Use 5W-30 (synthetic oil).
- It is acceptable to fill an engine with oil of another brand when replacing the oil, but make sure to use the following engine oil specified by Subaru.
Factory Service Tools
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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.
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