GMC 2006 Savana Owner's Manual page 276

How to Add Coolant to the Coolant
Recovery Tank for Gasoline Engines
If your vehicle has a diesel engine, see "How to
Add Coolant to the Coolant Recovery Tank" under "Van
Models" in the Cooling System section of the
®
DURAMAX Diesel Supplement for the proper coolant
fill procedure.
If you have not found a problem yet, but the coolant
level is not at the COLD FILL mark, add a 50/50 mixture
of clean, drinkable water and DEX-COOL
coolant at the coolant recovery tank. See Engine
Coolant on page 5-21 for more information.
5-28
{
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
®
engine
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:
•
•
CAUTION:
When using concentrated washer fluid, follow the
manufacturer's instructions for adding water.
Do not mix water with ready-to-use washer fluid.
Water can cause the solution to freeze and
damage your washer fluid tank and other parts of
the washer system. Also, water does not clean as
well as washer fluid.
®
coolant.