2003 Oldsmobile Aurora Owner's Manual - Page 269
2003 Oldsmobile Aurora Manual
Page 269 highlights
4. With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fans. 5. Then replace the pressure cap. Be sure the arrow on the pressure cap lines up like this. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches about 4.5 inches (11 cm) from the top of the filler neck. 5-36
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4.
With the coolant surge tank pressure cap
off,
start
the engine and let
it
run until you
can feel the
upper
radiator hose getting hot. Watch out for the
engine cooling fans.
By this time, the coolant level inside the coolant
surge tank
may
be lower.
If
the level is lower, add
more of the proper mixture to the coolant surge
tank until the level reaches about
4.5
inches
(1
1
cm) from the top of the filler neck.
5.
Then replace the pressure
cap.
Be
sure
the
arrow
on the pressure cap
lines
up like this.
5-36