Engine Lubrication System (H4DO): General Description: Specification
GENERAL SPECIFICATION CHART
| 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) | 77x12(3.03x0.47) | |||
| Performance (Oil temperature 120°C (248°F)) | 600 rpm | Discharge pressure | kPa (kgf/cm2 , psi | 40 (0.4, 5.8) | |
| Discharge rate | l (US qt, lmp qt)/min. | 5.8 (6.1, 5.1) or more | |||
| 6, 000 rpm | Discharge pressure | kPa (kgf/cm2 , psi | 323 (3.3, 46.8) | ||
| Discharge rate | l (US qt, lmp qt)/min. | 55 (58.1, 48.4) or more | |||
| Relief valve working pressure (2-step relief) | 1st opening pressure | kPa (kgf/cm2 , psi) | 150(1.5, 21.7) | ||
| Main opening pressure | kPa (kgf/cm2 , psi) | 570 (5.8, 82.6) | |||
| Filter type | Full-flow filter type | ||||
| Filtration area | cm2 (sq in) | Filter with outer diameter of 68 mm (2.68 in) | 1,100 (171) | ||
| Filter with outer diameter of 80 mm (3.15 in) | 1,300 (202) | ||||
| Oil filter | By-pass valve opening pressure | kPa (kgf/cm2 , psi) | 160(1.6, 23.2) | ||
| Outer diameter x width | mm (in) | Filter with outer diameter of 68 mm (2.68 in) | 68x85 (2.68x3.35) | ||
| Filter with outer diameter of 80 mm (3.15 in) | 80x75(3.15x2.95) | ||||
| Installation screw specifications | M 20x1.5 | ||||
| Oil pressure switch | Type | Immersed contact point type | |||
| Operating voltage | 12V | ||||
| Warning light operating pressure | kPa (kgf/cm2 , psi) | 14.7(0.1, 2.1) | |||
| Proof pressure | kPa (kgf/cm2 , psi) | 981 (10, 142.2) or more | |||
| Engine oil | Total capacity (at overhaul) | l (US qt, lmp qt) | 6.1 (6.4, 5.4) | ||
| When replacing engine oil and oil filter | l (US qt, lmp qt) | 5.2 (5.5, 4.6) | |||
| When replacing engine oil only | l (US qt, lmp qt) | 5.0 (5.3, 4.4) | |||
Recommended oil:
Oil corresponding to either of the following standards.
- Those with the API standard SM "Energy Conserving" or SN "Resource Conserving" logo.
- Those with the ILSAC standard GF-4 or GF-5 "starburst mark" displayed on top of the container.
CAUTION: It is acceptable to fill an engine with oil of another brand when replacing the oil, but make sure to use an oil with an API standard and SAE viscosity number specified by Subaru.NOTE: The proper viscosity oil helps the engine maintain its ideal temperature, and cranking speed increased by reducing viscosity friction in hot condition.