What To Use - Cadillac CTS 2008 Owner's Manual

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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 the cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the
proper coolant mixture will. The vehicle's
coolant warning system is set for the proper
coolant mixture. With plain water or the wrong
mixture, the engine could get too hot but would
not get the overheat warning. The 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 an improper coolant mixture is used,
the engine could overheat and be badly damaged.
The repair cost would not be covered by the vehicle
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 once or twice a
year, have your dealer/retailer check your cooling
system.
Notice: If extra inhibitors and/or additives are used
in the vehicle's cooling system, the vehicle could
be damaged. Use only the proper mixture of
the engine coolant listed in this manual for the
cooling system. See Recommended Fluids and
Lubricants on page 6-14 for more information.
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