What to Use
Refer to the Maintenance Schedule to determine what
W
of
lubricant
to
use. See “Recommended Fluids and
Lubricants”
in
the Index.
Engine
Coolant
The following explains your cooling system and how
to add coolant when
it
is low. If you have a problem
with engine overheating, see “Engine Overheating” in
the Index.
A
50/50
mixture of water and the proper coolant
for
your Geo will:
Give freezing protection down
to
-33
“F
(-36°C).
0
Give boiling protection up
to
258°F
(125°C).
Protect against rust and corrosion.
Help keep the proper engine temperature,
Let
the
warning lights and gages
work
as
they should.
What to Use
Use a mixture of one-half
clean
water
(preferably
distilled) and one-half antifreeze that meets
GM
Specification
1825-M,
which won’t damage aluminum
parts. You can also use a recycled coolant conforming
to
GM
Specification 1825-M with a complete coolant
flush
and refill. If you use this mixture, you don’t need to add
anything else.
/i\
CAUTTON:
Adding only plain water to
your
cooling 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
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 the proper antifreeze.
6-24
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