Coolant: Testing and Inspection

COOLANT INSPECTION

HINT: Check the coolant level when the engine is cold.

1. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
The engine coolant should be between the LOW and FULL lines when the engine is cold.

If low, check for leakage 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.

2. CHECK ENGINE COOLANT QUALITY
a. Remove the radiator cap.

CAUTION: To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.

b. Check for any excessive deposits of rust or scale around the radiator cap and radiator filler hole; the coolant should be free of oil.

If excessively dirty, replace the coolant.

c. Reinstall the radiator cap.