Chevrolet 2003 Astro Owner's Manual page 246

Notice: If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost wouldn't be covered by your
warranty. Too much water
in
the mixture can freeze
and crack the engine, radiator, heater core
and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice: If you use the proper coolant, you don't
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
Checking Coolant
r
The engine coolant tank is
located in the engine
compartment on the
passenger's side at the
front. See Engine
Compartment Overview
on page 5-14 for more
information on location.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at ADD,
or
a little higher. When your engine is warm, the level
should be up to FULL HOT, or a little higher.
Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixtureat the coolant recovery tank.
Lvrl
DEX-COOL@
L
A
A
Turning the radiato ressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
With the coolant recovery tank, you will almost
never have to add coolant at the radiator.
Never turn the radiator pressure cap
-
even a
little -when the engine and radiator are hot.
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