Lexus GS 450h 2008 Owner's Manual page 429

Hide thumbs Also See for GS 450h 2008:

Table of Contents

The coolant level is satisfactory if it is between the "FULL" and "LOW"

lines on the reservoir when the hybrid system is cold.

If the coolant level drops within a short time after replenishing

Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock and water

If you cannot find a leak, have your Lexus dealer pressure test the cap and check for

leaks in the cooling system.

Coolant selection

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.

U.S.A.: "Toyota Super Long Life Coolant" is a mixture of 50% coolant and 50%

deionized water. (Enabled: -31°F [-35°C])

Canada: "Toyota Super Long Life Coolant" is a mixture of 55% coolant and 45%

deionized water. (Enabled: -44°F [-42°C])

For more details about coolant, contact your Lexus dealer.

4-3. Do-it-yourself maintenance

Reservoir cap

If the level is on or below the

"LOW" line, add coolant up to the

"FULL" line.