Operating Instructions Instruments and Controls
Medium Duty
(R10/06) Y53-6008 – 25 –
WARNING! To reduce the chance of personal
injury and/or vehicle damage due to engine
overheating, never leave the engine idling with-
out an alert driver present. If the engine should
overheat, as indicated by the engine coolant
temperature light, immediate action is required
to correct the condition. Continued unattended
operation of the engine, even for a short time,
may result in serious engine damage or a fire.
For further details on engine operation, see the Engine Oper-
ation and Maintenance Manual in the glove compartment of
your vehicle.
Engine Oil Pressure Gauge
It is important to maintain oil pressure within acceptable lim-
its. If oil pressure drops below the minimum psi a Red Warn-
ing Lamp on the oil pressure gauge and the Stop Engine
Warning Lamp will come ON.
For further information on engine oil and normal operating
pressures, see the Engine Operation and Maintenance Man-
ual.
CAUTION: Continuing to operate your vehicle
with insufficient oil pressure will cause serious
engine damage.
• If the oil pressure fails to rise within 10 seconds after the
engine starts, stop the engine and determine the cause.
• Check the engine manufacturer's manual for the correct
oil pressure ranges for your vehicle's engine.
• If the oil pressure suddenly drops, or the audible alarm
and engine oil pressure warning light come on while driv-
ing, do the following:
1. Slow down carefully.
2. Move a safe distance off the road and stop.
Engine Oil Pressure Gauge
02585
