What To Use; Checking Coolant - Buick Automobile User Manual

What to Use

Use a mixture of one-half clean, drinkable water and
®
one-half DEX-COOL engine coolant which will not
damage aluminum parts. If this coolant mixture is used,
nothing else needs to be added.
CAUTION:
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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
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.
5-28
®
coolant.
If coolant needs to be added more than four times a
year, have your dealer/retailer check the 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 6-12 for more information.

Checking Coolant

If your vehicles is equipped with the 5.3L engine the
coolant recovery tank is located in the engine
compartment toward the rear of the engine on the driver
side of the vehicle See Engine Compartment Overview
on page 5-12 for more information on location.
The coolant recovery tank
is located in the engine
compartment toward the
rear of the engine on the
passenger side of the
vehicle.