Mercury 2003--Marauder Owner's Manual page 17

Instrument Cluster
Engine oil pressure gauge
Located in the lower center of the
instrument panel, indicates engine
oil pressure. If the pointer drops
below the normal operating range
(50–75 psi) or the minimum low (6
psi) pressure when the engine is
running, stop your vehicle as soon
as possible, shut off the engine and
check the oil level. Add oil if
necessary.
Do not continue to operate your
engine as long as the pointer is out of the normal operating range.
Otherwise, your engine may be severely damaged.
If the gauge indicates zero or very low oil pressure (needle drops
below "0") stop the vehicle and engine as soon as safe to do so
and check the engine oil level.
After running, the engine may be hot. Allow the engine to cool
before handling any components.
Voltmeter gauge
Located in the lower center of the
instrument panel, measures the
battery charging voltage. If the
meter consistently indicates less
than 13.0 volts or more than 15.0
volts under normal vehicle
operation, have your vehicle's
electrical system checked.
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