Chevrolet 2006 Equinox Owner's Manual page 272

3. Fill the coolant surge tank with the proper
®
DEX-COOL coolant mixture, to the
COLD FILL line.
5-30
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 DEX-COOL
to the coolant surge tank until the level reaches the
COLD FILL line.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight.
®
coolant mixture