Chevrolet 2008 Colorado Owner's Manual page 275

CAUTION:
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Fuel can spray out on you if you open the fuel
cap too quickly. If you spill fuel and then
something ignites it, you could be badly burned.
This spray can happen if your tank is nearly full,
and is more likely in hot weather. Open the fuel
cap slowly and wait for any hiss noise to stop.
Then unscrew the cap all the way.
Be careful not to spill fuel. Do not top off or overfill the
tank and wait a few seconds after you have finished
pumping before removing the nozzle. Clean fuel
from painted surfaces as soon as possible.
See Washing Your Vehicle on page 5-110.
When replacing the fuel cap, turn it clockwise until
it clicks. Make sure the cap is fully installed.
The diagnostic system can determine if the fuel cap
has been left off or improperly installed. This would allow
fuel to evaporate into the atmosphere. If the fuel cap
is not properly installed, the FUEL CAP message will
appear on the Driver Information Center (DIC) and the
check engine light will be lit on the instrument panel
cluster. See DIC Warnings and Messages on page 3-42
and Malfunction Indicator Lamp on page 3-34 for
more information.
CAUTION:
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If a fire starts while you are refueling, do not
remove the nozzle. Shut off the flow of fuel by
shutting off the pump or by notifying the
station attendant. Leave the area immediately.
Notice: If you need a new fuel cap, be sure to get
the right type. Your dealer/retailer can get one
for you. If you get the wrong type, it may not fit
properly. This may cause your malfunction indicator
lamp to light and may damage your fuel tank and
emissions system. See Malfunction Indicator Lamp
on page 3-34.
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