1998 Cadillac Catera Owner's Manual - Page 144

Oil Pressure LighUGage The light andgage tell you if there could be a problem with the engine oil pressure. The gage showsthe engine oil pressure in pounds per square inch (psi). Canadian vehicles show pressure in kilopascals (Wa). When the light comes on and stays on, it means that oil isn't flowing through the engine properly. You could be lowon oil and you might have some other system problem. 1A CAUTION: Don't keep drivingif 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 possibleand have your vehicle serviced. The oil light goeson when you turn the key to ON or START. It goes off once you start the engine. That's a check to be sure the light works. If it doesn't come on, be sure to have it fixed it will so be there to warn you something goes wrong. if 1 NOTICE: Damage to your engine from neglected oil problems can be costly and is not covered by your warranty.