Chevrolet Tahoe, Suburban 2007 Specifications download pdf (Page 463)

What to Use

Use a mixture of one-half clean, drinkable water

and one-half DEX-COOL

®

coolant which will

not damage aluminum parts. If you use this coolant

mixture, you do not need to add anything else.

{CAUTION:

Adding only plain water to your cooling

system can be dangerous. Plain water, or

some other liquid such as alcohol, can

boil before the proper coolant mixture will.

Your vehicle’s coolant warning system is

set for the proper coolant mixture. With

plain water or the wrong mixture, your

engine could get too hot but you would

not get the overheat warning. Your engine

could catch ﬁre and you or others could

be burned. Use a 50/50 mixture of clean,

drinkable water and DEX-COOL

®

coolant.

Notice: If you use an improper coolant

mixture, your engine could overheat and be

badly damaged. The repair cost would not be

covered by your warranty. Too much water

in the mixture can freeze and crack the engine,

radiator, heater core, and other parts.

If you have to add coolant more than four times a

year, have your dealer check your cooling

system.

Notice: If you use extra inhibitors and/or

additives in your vehicle’s cooling system, you

could damage your vehicle. Use only the

proper mixture of the engine coolant listed in

this manual for the cooling system. See

Recommended Fluids and Lubricants on

page 579 for more information.

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