Buick 2004 Century - Manual (Page 145)

Fuel Gage
The fuel gage indicates about how much fuel is left in
the fuel tank when the ignition is on. When the indicator
nears empty, there is still a little fuel left, but you
should get more fuel soon.
Here are four things that some owners ask about.
All these things are normal and do not indicate that
anything is wrong with the fuel gage:
• At the gas station, the pump shuts off before the
gage reads full.
• It takes more, or less, fuel to fill up than the gage
reads. For example, the gage reads half full, but
it took more, or less, than half of the tank’s capacity
to fill it.
• The gage pointer may move while cornering,
braking or accelerating.
• The gage may not indicate empty when the ignition
is turned off.
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