2013 Lexus ES 350 Owners Manual - Page 656

ES350 300h_OM_OM33A01U_(U)

6-3. Do-it-yourself maintenance

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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 coolant, contact your Lexus dealer.

■

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine/power control unit coolant reservoir caps,

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.

CAUTION

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When the engine <hybrid system> is hot

Do not remove the engine/power control unit coolant reservoir caps.

The cooling system may be under pressure and may spray hot coolant if the cap is

removed, causing serious injuries, such as burns.

NOTICE

■

When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of water

and antifreeze must be used to provide proper lubrication, corrosion protection

and cooling. Be sure to read the antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to prevent it from damaging parts or paint.