Pontiac 2002 Montana, Owner'S Manual

Page: 340 / 472

5-14
NOTICE:
When adding coolant, it is important that you
use only DEX
-
COOL
R
(silicate
-
free) coolant.
If coolant other than DEX
-
COOL is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
--
at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the
use of coolant other than DEX
-
COOL
R
is not
covered by your new vehicle warranty.
How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant
level isn’t at or above the FULL COLD mark, add
a 50/50 mixture of clean, drinkable water and
DEX
-
COOL
R
engine coolant at the coolant
recovery tank. See “Engine Coolant” in the Index
for more information.
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 wouldn’t
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
R
coolant.