Ford 2005 F250 Owner's Manual page 18

Instrument Cluster
Amarillo instrument cluster
Engine oil pressure gauge:
Indicates engine oil pressure. The
needle should stay in the normal
operating range (between "L" and
"H"). If the needle falls below the
normal range, stop the vehicle, turn
off the engine and check the engine
oil level. Add oil if needed. If the oil
level is correct, have your vehicle checked at your authorized dealer.
Fuel gauge: Indicates
approximately how much fuel is left
in the fuel tank (when the ignition
is in the ON position). The fuel
gauge may vary slightly when the
vehicle is in motion or on a grade.
Refer to Filling the tank in the
Maintenance and Specifications
chapter for more information.
Battery voltage gauge (manual
transmission only): Indicates the
battery voltage when the ignition is
in the ON position. If the pointer
moves and stays outside the normal
operating range, have the vehicle's
electrical system checked as soon as
possible.
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