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What to Use:
Use a mixture of one-half clean water
(preferably distilled) and one-half
antifreeze that meets "GM Specification
1825M," which won't damage aluminum
parts. You can also use a recycled coolant
conforming to GM Specification 1825M
with a complete coolant flush and refill.
If you use this mixture, you don't need to
add anything else.
Adding only plain water to
-
b
your coding system
can be
dangerous. Plain water, or some
other liquid like alcohol, can boil
before the proper coolant mix will.
Your
vehicle's coolant warning
system is set for the proper coolant
I
mix. With plain water or
the wrong
mix, 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
mix of clean
water and
a
proper
antifreeze.
-
-
I
If you use an improper coolant mix,
your engine could overheat and be
badly damaged. The repair cost
wouldn't be covered by your
warranty. Too much water in
1-
mix can freeze and crack the engine,
radiator, heater core and other parts.
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