Section 11 (Engine Cooling System (2.5L)): General Description: Specification
WARNING: This page is about a different variant/trim than selected.
| Cooling system |
Electric fan + Forced engine coolant circulation system |
| Total engine coolant capacity L (US qt, Imp qt) |
Approx. 7.7 (8.2, 6.8) |
| Water pump |
Type |
Centrifugal impeller type |
| Discharge performance |
Discharge rate L (US gal, Imp gal)/min |
200 (52.8, 44.0) |
| Pump speed - Discharge pressure |
6, 000 r/min - 225.4 kPa (23.0 mAq) |
| Engine coolant temperature |
80°C (176°F) |
| Impeller diameter mm (in) |
76 (2.99) |
| Number of impeller vanes |
8 |
| Pump pulley diameter mm (in) |
60 (2.36) |
| Clearance between impeller and pump case mm (in) |
Standard |
0.5 - 1.5 (0.020 - 0.059) |
| Thermostat |
Type |
Wax pellet type |
| Starting temperature to open |
76 - 80°C (169 - 176°F) |
| Fully opens |
91°C (196°F) |
| Valve lift mm (in) |
9.0 (0.354) or more |
| Valve opening size mm (in) |
35 (1.38) |
| Radiator fan |
Motor input |
Main fan W |
160 |
| Sub fan W |
160 |
| Fan diameter/Blade |
Main fan |
320 mm (12.6 in)/9 |
| Sub fan |
320 mm (12.6 in)/11 |
| Radiator |
Type |
Down flow |
| Core dimensions |
Width x Height x Thickness mm (in) |
687.4 x 340 x 16 (27.06 x 13.39 x 0.63) |
| Pressure range in which cap valve is open |
Coolant filler tank side kPa (kg/cm2
, psi) |
Positive pressure side |
Standard |
93 - 123 (0.95 - 1.25, 14 - 18) |
| Limit |
83 (0.85, 12) |
| Negative pressure side |
Standard |
-1.0 --4.9 (-0.01 --0.05, -0.1 --0.7) |
| Radiator side kPa (kg/cm2
, psi) |
Positive pressure side only |
Standard |
122 - 152 (1.24 - 1.55, 18 - 22) |
| Limit |
112 (1.14, 16) |
| Fins |
Corrugated fin type |
| Reservoir tank |
Capacity L (US qt, Imp qt) |
0.45 (0.48, 0.40) |
| |
Recommended materials |
Item number |
Alternative |
| Engine coolant |
SUBARU SUPER COOLANT (concentrated type) |
- |
- |
| SUBARU SUPER COOLANT (diluted type) |
K0670Y0001 |
| Water for dilution |
Distilled water |
- |
Soft water or tap water |
| Cooling system protective agent |
Cooling system conditioner |
SOA345001 |
- |