OUTLINE
The cooling system is a pressurized, forced-circulation type. The reservoir tank is not pressurized.
A thermostat with a bypass valve is located in the water inlet housing to maintain suitable temperature distribution in the cooling system.
A drain cock is provided on the water inlet to improve the efficiency of changing the engine coolant.
Toyota Genuine Super Long Life Coolant (SLLC) is used.
| *A | Models with Oil Cooler Assembly | *B | Models without ATF Warmer |
| *C | Models with ATF Warmer | - | - |
| *1 | Thermostat | *2 | Oil Cooler Assembly |
| *a | To Throttle Body | *b | From Throttle Body |
| *c | To Radiator Assembly | *d | From Radiator Assembly |
| *e | From Heater Core | *f | From ATF Warmer |
| *g | To Heater Core | - | - |
SPECIFICATION
Engine Coolant
| Engine Coolant Type | Toyota Genuine Super Long Life Coolant (SLLC) or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite and non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids). Do not use plain water alone. | |
| Maintenance Intervals | First Time | 160000 km (100000 miles) |
| Subsequent | Every 80000 km (50000 miles) | |
| Color | Pink | |
Tech Tips
SLLC is pre-mixed (50% coolant and 50% deionized water).
Thermostat
| Thermostat Opening Temperature | 80°C to 84°C (176°F to 183°F) |