Buick 1993 Skylark Owner's Manual page 202

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1
A
CAUTION':
Adding only plain water to
your
cooling system
can be dangerous. Plain water, or some lother
liquid li~ke alcohol, can boil before tihe proper
coolant mix will. Your whicl'e's CoOilant warning
You
can1 be burned if you spill coolant on hot
,,
engilne ~parts. Coolaint contains ethylene glycol
and lit wil~il burn if the enlgine
parts
are ,hot
enough. h n ' t spill coolant
on a hot
engine.
I
system
is set for the proper coolant mix. With
plain water or the wron.g, mix, your engi'ne could8
1
get too h,ot but you wouldn't get thie overheat
warning. Your engine could catclh fire and you or
others could be burned. Use
;a
50/50 mix of clean
water and a proper antifreeze.
1
I
1-
1. You can remove the
coolant surge tank
pressure cap when the
cooling system,
including the coolant
surge
tank
pressure cap
and upper radiator hose,
is no longer hot. Turn
the pressure cap slowly
i
about one-quarter turn
1
to the left and then stop.
I
If you hear a hiss, wait for that to stop.
A hiss means
there is still some pressure left.
201

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