Lubrication method | Forced lubrication | Oil pump | Pump type | Trochoid type | Number of teeth | Inner rotor | 11 | Outer rotor | 12 | Outer rotor diameter - Thickness | mm (in) | 77 - 12 (3.03 - 0.47) | Performance (Oil temperature 120°C (248°F)) | 600 r/min | Discharge pressure | kPa (kg/cm2, psi) | 40 (0.4, 5.8) | Discharge rate | L (US qt, Imp qt)/min | 5.8 (6.1, 5.1) or more | 6,000 r/min | Discharge pressure | kPa (kg/cm2, psi) | 323 (3.3, 46.8) | Discharge rate | L (US qt, Imp qt)/min | 55 (58.1, 48.4) or more | Relief valve working pressure (2-step relief) | 1st opening pressure | kPa (kg/cm2, psi) | 150 (1.5, 21.7) | Main opening pressure | kPa (kg/cm2, psi) | 570 (5.8, 82.6) | Oil filter | Filter type | Full-flow filter type | Filtration area | cm2 (sq in) | 867 (134.3) | By-pass valve opening pressure | kPa (kg/cm2, psi) | 160 (1.6, 23.2) | Outer diameter - Width | mm (in) | 67.4 - 87.1 (2.65 - 3.43) | Installation screw specifications | M 20 - 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) | 5.7 (6.0, 5.0) | When replacing engine oil and oil filter | L (US qt, Imp qt) | 4.8 (5.1, 4.2) | When replacing engine oil only | L (US qt, Imp qt) | 4.6 (4.9, 4.0) |
CAUTION: • Use 0W-20 (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. Engine oil standard | SAE viscosity No. | Those with SN “Resource Conserving” logo in case of API standard. | or | Those with GF-5 “starburst mark” displayed on top of the container in case of ILSAC standard. | 0W-20 (synthetic oil) |
NOTE: The proper viscosity oil helps the engine maintain its ideal temperature, and cranking speed increased by reducing viscosity friction in hot condition. |