Chevrolet 1993 Corvette Owner's Manual page 224

4.
Then fill the coorant recovery tam to
the HOT mark an the.dip$tick..
-5..
Put the cap back on the- coolant.
recovery tank, but leave the coolant
high fill reservoir pressure cap off.
6.
Start the engine and
let
it
m
until
y ~ u can feel the upper radiator hose-
getting hot. Watch out for the engine-
fans.
7. By this time the coolant level inside
the coolant high fill reservoir filler
neck may be -lower. i f the level is
lower, add more
of the
proper mix
thxough the filler neck until the level
reaches..the base of the Tiller neck.