Buick 2007 LaCrosse Owner's Manual page 373

How to Add Coolant to the Coolant
Recovery Tank
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
If you have not found a problem yet, but the
coolant level is not at the cold fill line, add a
50/50 mixture of clean, drinkable water and
DEX-COOL
recovery tank. See Engine Coolant on page 363
for more information.
Notice: In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant
and the proper coolant mixture.
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You can be burned if you spill coolant
on hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
®
coolant.
coolant on a hot engine.
When the coolant level in the coolant recovery
tank is at the cold fill line, start the vehicle.
®
engine coolant at the coolant
CAUTION:
373