Pressure Cap - Pontiac 2009 G8 Owner's Manual

If no coolant is visible in the surge
tank, add coolant as follows:
1. Check the engine coolant
reservoir level and, if required,
top with coolant. See Engine
Coolant on page 9-15 Engine
Coolant.
2. Locate the radiator cap.
3. Cover the cap with a thick
cloth and turn it slowly
counterclockwise and remove.
4. If there is no coolant or the level is
low, slowly fill the system through
the radiator cap opening with a
50/50 mixture of clean, drinkable
water and a DEX-COOL
until full. Wait 30 seconds for
coolant to settle and top off if the
level drops.
Do not spill coolant on the
accessory drive belts.
If a spill occurs, rinse the belt
with fresh water.
5. Start the engine.
6. With the engine idling, top off the
coolant through the radiator cap
opening until full.
Wait 30 seconds for the coolant
to settle and top off, if the
level drops.
7. Once the system is full, put the
radiator cap back on by turning
clockwise.
Vehicle Service and Care
8. Turn off the ignition.
9. Check the coolant level in the
reservoir and fill it until the
level is at the top of the dipstick.
®
coolant
Notice: If the pressure cap is
not tightly installed, coolant loss
and possible engine damage
may occur. Be sure the cap is
properly and tightly secured.

Pressure Cap

Notice: If the pressure cap is
not tightly installed, coolant loss
and possible engine damage
may occur. Be sure the cap is
properly and tightly secured.
See Engine Compartment Overview
on page 9-6 for more information
on location.
9-19