1993 Pontiac Bonneville Owner's Manual - Page 111

Oil Pressure Gage (OPTION) The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicatepressure in kPa. Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the red warning zone indicatethe normal operating range. A reading in the red zone may be caused by a dangerously low oil level or other problem causing low oil pressure. The CHECK GAGES light will go on and a warning chime will sound, if you have this option. Driving your vehicle with low oil pressure can cause extensive engine damage. I . . 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 rviced. Voltmeter 1 Unless you have the supercharged (OPTION) I I Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. engine, you may have a voltmeter. When the engine is running, the gage shows the condition of the charging system. Readings outside the red warning zone indicate the normal operating range. Readings in the red warning zone indicate a possible problem in the electrical system. The CHECK GAGES light will also come on, and a warning , chime will sound. Have your vehicle serviced immediately. When your engine is not running, but the ignition is on (in theRun position), the gage shows your battery's state of charge in DC volts. I10