Pontiac 1993 Grand Am Owner's Manual page 223

Service & Appearance Care
I
Engine Coolant
(CONI)
If you use an improper coolant
mix, your engine could overheat
and be badly damaged. The reDair
cost wouldn't be covered by yo
warranty. Too much water in the
mix can freeze and crack the
engine, radiator, heater c
;
and
other parts.
Adding Coolant
To Check Coolant:
When your engine is cold, the coolant
level should be at FULL COLD, or a
little higher.
3
To Add Coolant:
If you need more coolant, add the
proper mix at the surge tank, but only
when the engine is cool.
I I
Turning the surge tank
L
pressure cap when the engine
and radiator are hot can allow
sbeam and
scalding liquids
to
blow
out and burn you badly. Never turn
the surge
tank pressure capieven
a little-when the engine and
I
radiator are hot.