Buick 1993 Century Owner's Manual page 202

The coolant should be at or slightly above the "FULL
HOT" mark. If it isn't, you may have a leak in the
radiator hoses, heater hoses, radiator, water pump or
somewhere else in the cooling system.
A
CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don't touch them. If
you do, you can be burned.
Don't run the engine if there
__
a leak. If you
run the engine,
it
could lose all coolant. That
could cause an engine fire, and you could be
burned. Get any leak fixed before you drive the
vehicle.
If there seems to be no leak, check to see if the electric
engine fan is running. If the engine is overheating, the fhn
should be running. If it isn't, your vehicle needs service.
How t o Add Coolant to the Coolant
Recovery
Tl[)ank
If you haven't found a problem yet, but the coolant level
isn't above "ADD:' add a
50/50
mixture of clean water
(preferably distilled) and the proper antifreeze at the
coolant recovery
t a n k .
(See "Engine Coolant" in the Index
for more information about the proper coolant
mi x .)
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