Engine Coolant - Lexus SC 430 2006 Owner's Manual

4-3. Do-it-yourself maintenance

Engine coolant

The coolant level is satisfactory if it is between the "FULL" and "LOW"
lines on the reservoir when the engine is cold.
If the coolant level drops within a short time after replenishing
■
Visually check the radiator, hoses, engine coolant filler cap, radiator cap and drain
cock and water pump. If you can not find a leak, have your Lexus dealer test the cap
pressure and check for leaks in the cooling system.
Coolant type selection
■
Use of improper coolants may damage your engine cooling system.
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 technol-
ogy is a combination of low phosphates and organic acids.)
 
For the U.S.A.
For Canada
Please contact your Lexus dealer for further details.
202
"Toyota Super Long Life Coolant" is a mixture of 50% coolant
and 50% deionized water. (Enabled: -31F (-35C))

"Toyota Super Long Life Coolant" is a mixture of 55% coolant
and 45% deionized water. (Enabled: -44F (-42C))
Reservoir cap
1
Full line
2
Low line
3
If the level is on or below the
"LOW" line, add coolant to the res-
ervoir up to the "FULL" line.