LUBRICATION(H4DO 1.5) > General Description
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Lubrication method |
Forced lubrication | |||||
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Oil pump |
Pump type |
Trochoid type | ||||
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Number of teeth |
Inner rotor |
9 | ||||
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Outer rotor |
10 | |||||
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Outer rotor diameter × thickness |
mm (in) |
76 × 10 (2.99 × 0.39) | ||||
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Tip clearance between inner and outer rotors |
mm (in) |
0.04 — 0.14 (0.0016 — 0.0055) | ||||
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Side clearance between inner rotor and pump case |
mm (in) |
0.02 — 0.07 (0.0008 — 0.0028) | ||||
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Case clearance between outer rotor and pump case |
Specification |
mm (in) |
0.10 — 0.175 (0.0039 — 0.0069) | |||
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Performance (Oil temperature 80°C (176°F)) |
600 rpm |
Discharge pressure |
kPa (kgf/cm2, psi) |
98 (1.0, 14) | ||
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Discharge rate |
L (US qt, Imp qt)/min. |
4.6 (4.9, 4.0) or more | ||||
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5,000 rpm |
Discharge pressure |
kPa (kgf/cm2, psi) |
294 (3.0, 43) | |||
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Discharge rate |
L (US qt, Imp qt)/min. |
47.0 (49.7, 41.4) or more | ||||
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Relief valve working pressure |
kPa (kgf/cm2, psi) |
588 (6.0, 85) | ||||
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Oil filter |
Filter type |
Full-flow filter type | ||||
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Filtration area |
cm2 (sq in) |
Outer diameter: 68 mm (2.68 in) |
800 (124) | |||
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Outer diameter: 65 mm (2.56 in) |
470 (72.9) | |||||
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By-pass valve opening pressure |
kPa (kgf/cm2, psi) |
160 (1.63, 23.2) | ||||
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Outer diameter × width |
mm (in) |
Outer diameter: 68 mm (2.68 in) |
68 × 65 (2.68 × 2.56) | |||
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Outer diameter: 65 mm (2.56 in) |
65 × 74.4 (2.56 × 2.93) | |||||
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Installation screw specifications |
M 20 × 1.5 | |||||
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Oil pressure switch |
Type |
Immersed contact point type | ||||
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Operating voltage — power consumption |
12 V — 3.4 W or less | |||||
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Warning light operating pressure |
kPa (kgf/cm2, psi) |
14.7 (0.15, 2.1) | ||||
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Proof pressure |
kPa (kgf/cm2, psi) |
981 (10, 142) or more | ||||
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Engine oil |
Total capacity (Overhaul) |
L (US qt, Imp qt) |
5.0 (5.3, 4.4) | |||
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When replacing engine oil and oil filter |
Models with oil cooler |
L (US qt, Imp qt) |
4.3 (4.5, 3.8) | |||
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Models without oil cooler |
L (US qt, Imp qt) |
4.2 (4.4, 3.7) | ||||
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When replacing engine oil only |
L (US qt, Imp qt) |
4.0 (4.2, 3.5) | ||||
Recommended oil:
Oil which meets the following specification:
• For API standard, those with the SM or SL “Energy Conserving“ logo.
• For ILSAC standard, those with the GF-4 or GF-3 “Starburst mark” displayed on top of the container.
• For ACEA standard, those with the A1, A2, or A3 displayed on top of the container.
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(1) |
SAE viscosity No. and applicable temperature |
CAUTION:
• Do not use 0W-20 for turbo model.
• 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:
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