GMC 1993 Safari Owner's Manual page 120

Features & Contmls
Oil Pressure Gage
Standard Cluster
H
OIL
Digital Cluster
.
. ...
. .
. .
. -
. .
The oil pressure gage shows the engine oil pressure in psi (pounds per
square inch) when the engine is running. Canadian vehicles indicate pressure
in kPa (kilopascals). Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the low pressure zone
indicate the normal operating range.
A reading in the low pressure zone may be caused by a dangerously low oil
level or other problem causing oil pressure.
On the digital cluster, a box around the oil pressure symbol will begin to flash
when the oil pressure
is
low.
1
CAUTION
Don't keep driving if the oil pressure is low. If you do, your engine
can become so hot that it catches fire. You or others could be
burned. Check your oil as soon as possible and have your vehicle
serviced.
NOTICE
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