Engine Coolant - Lexus RC F 2015 Owner's Manual

484
7-3. 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.
RC350

Reservoir cap
1
"FULL" line
2
If the level is on or below the "LOW" line, add coolant up to the "FULL" line.
(P. 597)
Coolant selection
■
Only use "Toyota Super Long Life Coolant" or a 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.
(Minimum temperature: -31F [-35C])
Canada:
"Toyota Super Long Life Coolant" is a mixture of 55% coolant and 45% deionized water.
(Minimum temperature: -44F [-42C])
For more details about engine coolant, contact your Lexus dealer.
If the coolant level drops within a short time of replenishing
■
Visually check the radiator, hoses, engine coolant reservoir cap, drain cock and water
pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in the
cooling system.
RC350/RCF_U (OM24636U)
RC F

"LOW" line
3
I n f o r ma t i o n P r o v i d e d b y :