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{ CAUTION
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you
do, you can be burned.
Do not run the engine if there is
a leak. If you run the engine, it
could lose all coolant. That
could cause an engine fire, and
you could be burned. Get any
leak fixed before you drive the
vehicle.
If there seems to be no leak, with the
engine on, check to see if the electric
engine cooling fans are running.
If the engine is overheating, both
fans should be running. If they are
not, your vehicle needs service.
Notice: Engine damage from
running the engine without
coolant is not covered by the
warranty.
Notice: Using coolant other than
DEX-COOL
®
can cause premature
engine, heater core, or radiator
corrosion. In addition, the engine
coolant could require changing
sooner, at 30,000 miles
(50 000 km) or 24 months,
whichever occurs first. Any
repairs would not be covered by
the vehicle warranty. Always
use DEX-COOL
®
(silicate-free)
coolant in the vehicle.
How to Add Coolant to the
Cooling System
Notice: This vehicle has a
specific coolant fill procedure.
Failure to follow this procedure
could cause the engine to
overheat and be severely
damaged.
If no coolant is visible in the coolant
reservoir, add coolant as follows:
{ 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
you 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.
Vehicle Service and Care 9-19
2008 - Pontiac G8 Owner Manual