Section 13 (Engine Lubrication (H4SO)): General Description: Specification
WARNING: This page is about a different variant/trim than selected.
SPECIFICATION
| Lubrication method | Forced lubrication | ||||
|---|---|---|---|---|---|
| Oil pump | Pump type | Trochoid type | |||
| Number of teeth | Inner rotor | 9 | |||
| Outer rotor | 10 | ||||
| Outer rotor diameter x thickness | mm (in) | 76 x 10 (2.99 x 0.47) | |||
| Tip clearance between inner and outer rotors | mm (in) | 0.04 - 0.14 (0.0016 - 0.0055) | |||
| Side clearance between inner rotor and pump case | mm (in) | 0.02 - 0.07 (0.0008 - 0.0028) | |||
| Case clearance between outer rotor and pump case | Standard | mm (in) | 0.10 - 0.175 (0.0039 - 0.0069) | ||
| Performance (Oil temperature 80°C (176°F)) | 600 RPM | Discharge pressure | kPa (kg/cm2 , psi) | 98 (1.0, 14) | |
| Discharge rate | l (US qt, lmp qt)/min. | 4.6 (4.9, 4.0) or more | |||
| 5,000 RPM | Discharge pressure | kPa (kg/cm2 , psi) | 294 (3.0, 43) | ||
| Discharge rate | l (US qt, lmp qt)/min. | 47.0 (49.7, 41.4) or more | |||
| Relief valve working pressure | kPa (kg/cm2 , psi) | 588 (6.0, 85) | |||
| Oil filter | Filter type | Full-flow filter type | |||
| Filtration area | cm2 (sq in) | 800 (124) | |||
| By-pass valve opening pressure | kPa (kg/cm2 , psi) | 160 (1.63, 23.2) | |||
| Outer diameter x width | mm (in) | 68 x 65 (2.68 x 2.56) | |||
| Installation screw specifications | M 20 x 1.5 | ||||
| Oil pressure switch | Type | Immersed contact point type | |||
| Operating voltage - power consumption | 12 V - 3.4 W or less | ||||
| Warning light operating pressure | kPa (kg/cm2 , psi) | 14.7 (0.15, 2.1) | |||
| Proof pressure | kPa (kg/cm2 , psi) | 981 (10,142) or more | |||
| Engine oil | Total capacity (Overhaul) | l (US qt, lmp qt) | 5.0 (5.3, 4.4) | ||
| When replacing engine oil and oil filter | l (US qt, lmp qt) | 4.2 (4.4, 3.7) | |||
| When replacing engine oil only | l (US qt, lmp qt) | 4.0 (4.2, 3.5) | |||
Recommended oil:
Oil suitable for the standard from the followings .
- For API standard, oil with SM "Energy Conserving" logo
- For ILSAC standard, oil with GF-4 "Star burst mark" label on 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.
- If the vehicle is used in regions with high temperatures or in other severe environments, use oil with the viscosities shown below.
API standard: SM or SL
SAE Viscosity No.: 30,40,10W-50,20W-40,20W-50