Section 1 (Engine Cooling System (Except STI)): 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) |
CVT model: Approx. 8.4 (8.9, 7.4) |
| MT model: Approx. 8.2 (8.7, 7.2) |
| Water pump |
Type |
Centrifugal impeller type |
| Discharge performance |
Discharge rate |
L (US gal, Imp gal)/min |
248 (65.5, 54.6) |
| Pump speed - Discharge pressure |
8, 580 rpm - 88 kPa (9.2 mAq) |
| Engine coolant temperature |
80°C (176°F) |
| Impeller diameter |
mm (in) |
56 (2.2) |
| Number of impeller vanes |
7 |
| Pump pulley diameter |
mm (in) |
100 (3.9) |
| Thermostat |
Type |
Wax pellet type |
| Starting temperature to open |
86 - 90°C (187 - 194°F) |
| Fully opens |
95°C (203°F) |
| Valve lift |
mm (in) |
8.0 (0.315) or more |
| Valve opening size |
mm (in) |
32 (1.26) |
| Radiator fan |
Motor input |
Main fan |
W |
120 |
| Sub fan |
W |
120 |
| Fan diameter/Blade |
Main fan |
318.5 mm (12.54 in)/9 |
| Sub fan |
318.5 mm (12.54 in)/11 |
| Radiator |
Type |
Down flow, pressure type |
| Core dimensions |
Width x Height x Thickness |
mm (in) |
687.4 x 340 x 27 (27.06 x 13.39 x 1.06) |
| Pressure range in which cap valve is open |
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 to -4.9 or less (-0.01 - -0.05, -0.1 - -0.7) |
| Fins |
Corrugated fin type |
| Reservoir tank |
Capacity |
L (US qt, Imp qt) |
0.45 (0.48, 0.40) |
| |
Recommended materials |
Item number |
Alternative |
| 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 |
- |