Toyota Tundra 2005 Service - Repair - Maintenance page 2027

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Check the coolant level when the engine is cold.

CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR

The engine coolant level should be between the "LOW" and "FULL" lines at normal temperature

(20°C(68°F)).

If low, check for leaks and add "Toyota Super Long Life Coolant" or similar high quality ethylene glycol based

non−silicate, non−amine, non−nitrite, and non−borate coolant with long−life hybrid organic acid technology

up to the "FULL" line.

CHECK ENGINE COOLANT QUALITY

Remove the radiator cap.

To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator

are still hot, as fluid and steam can be blown out under pressure.

There should not be any excessive deposits of rust or scale around the radiator cap or radiator filler

hole, and the coolant should be free from oil.

If excessively dirty, clean the coolant passages and replace the coolant.

Reinstall the radiator cap.

COOLING (1GR−FE)