fuel consumption PONTIAC BONNEVILLE 1997 Owners Manual

Here are some things that some owners ask about. None
of these show a problem with your fuel gage:
At the service station, the gas pump shuts off before
It takes a little more or less fuel to fill up than the
the
gage reads
FULL (F).
gage indicated. For example, the gage may have
indicated the tank was
half full, but it actually took a
little more or less than half the tank's capacity to fill
the tank.
The gage moves a little when you turn a corner,
The gage doesn't go back to EMPTY (E) when you
0 If you have the large span (220") gage, the needle
moves
more for a given amount of fuel. This does
not indicate excessive fuel consumption, and
is normal.
speed
up, or make
a hard stop.
turn off the ignition.
Boost Gage (Option)
msT -10
Vehicles equipped with the supercharged engine have
this boost gage that indicates vacuum during light to
moderate throttle an'd boost under heavier throttle. The
gage displays
the air pressure level in psi going into the
engine's combustion chamber.
The gage is automatically centered at zero psi every
time the engine is started. Actual vacuum or boost is
displayed from this zero point. Changes in ambient
pressure, such as driving in mountains and changing
weather, will slightly change the zero reading.
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