Coolant Type Selection - Lexus GX470 2004 Owner's Manual

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If the coolant level drops within a short time after replenishing,

there may be a leak in the system. Visually check the radiator,

hoses, engine coolant filler cap, radiator cap and drain cock

and water pump.

If you can find no leak, have your Lexus dealer test the radiator

cap pressure and check for leaks in the cooling system.

To prevent burning yourself, do not remove the radiator

cap when the engine is hot.

Do not use plain water alone.

Coolant type selection

Use of improper coolants may damage your engine cooling

Only use "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. (Coolant with long-life hybrid organic

acid technology consists of the combination of low phosphates

and organic acids.)

"Toyota Super Long Life Coolant" is a mixture of 50% coolant

and 50% deionized water. This coolant provides protection

down to about -35_C (-31_F).