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The engine cooling system is filled
with a long-life additive for the radiator
(ethylene glycol) whose properties
provide proper protection against
freezing, boiling and corrosion.
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Allow the engine to cool before
opening the cap. Carefully open
the cap, relieving the pressure
slowly.
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A low coolant level can cause
engine damage.
If the cooling system is cold, the
coolant level should be above the
filling line mark. Top up if the level is
low. Therefore add to the surge tank
a mixture of demineralised water and
additive for radiators (long duration –
orange colour) ACDelco (35% to 50%
ratio of additive).
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The additive for radiators (long life –
orange colour) should not be mixed
to standard additives (green colour)
or other products, such as soluble oil
C. The blends react forming sludge
that could lead to the system
clogging and consequently the
engine overheating. In case of
changing the type of additive, the
system should be thoroughly
flushed.
Install the cap tightly. Have the
coolant concentration checked and
have the cause of the coolant loss
remedied by Chevrolet dealers.
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