8AR-FTS COOLING SERVICE DATA

THERMOSTAT
Condition Specified Condition
Standard valve opening temperature 80 to 84°C (176 to 183°F)
Standard valve lift 10 to 12 mm (0.394 to 0.472 in.) at 95°C (203°F)
THERMOSTAT (for Cylinder Block)
Condition Specified Condition
Standard valve opening temperature 76 to 80 °C (169 to 176 °F)
Standard valve lift 8.0 mm (0.315 in.) or more at 91 °C (196 °F)
COOLING FAN MOTOR
Item Condition Specified Condition

for Cooling Fan Motor 240 W + 240 W Type:

Cooling fan motor

Battery voltage applied at 20°C (68°F) 15.0 to 21.0 A

for Cooling Fan Motor 240 W + 240 W Type:

No. 2 cooling fan motor

15.0 to 21.0 A
FAN RELAY
Item Tester Connection Specified Condition
FAN NO. 1 relay 3 - 5

10 kΩ or higher

(Battery voltage not applied between terminals 1 and 2)

3 - 5

Below 1 Ω

(Battery voltage applied between terminals 1 and 2)

FAN NO. 2 relay 3 - 5

10 kΩ or higher

(Battery voltage not applied between terminals 1 and 2)

3 - 5

Below 1 Ω

(Battery voltage applied between terminals 1 and 2)

RADIATOR
Item Condition Specified Condition
Reserve tank cap

Standard pressure

(for brand-new reserve tank cap)

93 to 123 kPa (0.9 to 1.3 kgf/cm2, 13.5 to 18.0 psi)

Minimum pressure

(for used reserve tank cap)

79 kPa (0.8 kgf/cm2, 11.5 psi)

COOLANT
Capacity Classification

w/ Stop And Start System:

7.9 liters (8.3 US qts, 7.0 Imp. qts)

LEXUS vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damaging the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, 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).

w/o Stop And Start System:

7.8 liters (8.2 US qts, 6.9 Imp. qts)