Ford 2003 Explorer Owner's Manual page 15

Instrument Cluster
Battery voltage gauge: Indicates
the battery voltage when the
ignition is in the ON position. If the
pointer moves and stays outside the
H
normal operating range (as
L
indicated by arrows), have the
vehicle's electrical system checked
as soon as possible.
Engine oil pressure gauge:
Indicates engine oil pressure. The
needle should stay in the normal
operating range (between "L" and
H
"H"). If the needle falls below the
normal range, stop the vehicle, turn
L
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 dealership or by a
qualified technician.
Fuel gauge: Indicates
approximately how much fuel is left
F
in the fuel tank (when the ignition
is in the ON position). The fuel
gauge may vary slightly when the
E
vehicle is in motion or on a grade.
Refer to Filling the tank in the
Maintenance and Specifications chapter for more information..
15