Porsche 928 GT1991, Owner'S Manual

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Oil pressure gauge
Oil pressure warning light
Engine oil pressure is shown in bar. At 5000
rpm with the engine at normal operating
temperature the oil pressure should be
about 5 bar. A slight drop in oil pressure at
higher temperatures is normal.
Should the oil pressure suddenly drop while
driving or if the fault message appears in the
informations system display, pull off the
road and stop the engine immediately.
Check the engine oil level. If oil level is cor-
rect, do not drive the vehicle as severe en-
gine damage may result. Contact your
nearest Porsche dealer for assistance.
Oil pressure warning light
The oil pressure warning light comes on
when the ignition is turned on and goes out
as soon as the correct operating pressure is
reached. Should the light com on during driv-
ing, this indicates that the oil pressure is not
correct.
Fuel level gauge and
warning light
With the ignition on, the amount of fuel in the
tank is indicated by the fuel gauge needle.
If the level is too low the fuel level warning
light comes on and fault message appears
in the information system display.
Fuel level warning light
This light comes on when the fuel reserve
level in the tank is down to about 3.2 U.S.
gals, or 12 liters. Time to refuel.
Voltmeter
Alternator warning light
The voltmeter shows the overall condition of
the charging system. The needle should nor-
mally stay in the 12 - 14 volt range when the
engine is running. A temporary drop below
12 volts when starting the engine is normal.
A fault message appears in the information-
system display if voltage is too low.
The alternator warning light comes on when
the ignition is turned on and goes out as the
engine rpm increases. If the light does not
light up when turning the ignition on, or if it
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