1997 GMC Safari Owner's Manual - Page 141

If you experience one or more of these conditions, change the fuelbrand you use. It will require at least one to off. full tank of the proper fuel turn the light If none of the abovesteps have made the light turn off, have your dealer or qualified service center check the vehicle. Your dealer has the proper test equipment and diagnostic toolsto fix any mechanical or electrical problems that may have developed. A reading in the low pressure zone may becaused by a dangerously low oil level or other problems causing low oil pressure. I /i\ CAUT13N: Don't keep driving if the oil pressure is low. If you do,your engine can become so hot thatit catches fire. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. Oil Pressure Gage The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine running. is I NOTICE: Damage to yourengine from neglected oil problems can be costlyand is not covered by your warranty. Canadian vehicles indicate pressure kPa (kilopascals). in Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate thenormal operating range. 2-67