Chevrolet 1999 Cavalier Owner's Manual page 219

NOTICE:
When adding coolant, it is important that you use
R
-
only DEX COOL (silicate
If coolant other than DEX
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX
covered by your new vehicle warranty.
If there seems to be no leak, with the engine on, check to
see if the electric engine cooling fan is running. If the
engine is overheating, the fan should be running. If it
isn't, your vehicle needs service.
-
free) coolant.
-
COOL is added to the
--
at
R
-
COOL is not
How to Add Coolant to the Coolant
Surge Tank
If you haven't found a problem yet, but the coolant level
isn't at the FULL COLD mark, add a 50/50 mixture of
clean, drinkable water and DEX
coolant surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap, is cool
before you do it. (See "Engine Coolant" in the Index for
more information.)
yellowblue
R
-
COOL coolant at the
5-13