2002 Pontiac Firebird Owner's Manual - Page 151

Oil Pressure Gage In certain situations such as long, extended idles on hot days, it could read as low as 6 psi (40 kPa) and still be considered normal. It may vary with engine speed, outside temperature and oil viscosity, but readings above the red area show the normal operating range. Readings in the red area tell you that the engine is low on oil, or that you might have some other oil problem. See "Engine Oil" in the Index. CAUTION: United States 5.7L V8 Engine shown 3800 V6 Engine similar Canada 5.7L V8 Engine shown 3800 V6 Engine similar 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. This gage tells you if there could be a problem with your engine oil pressure. The gage shows the engine oil pressure in psi (pounds per square inch) or kPa (kilopascals) when the engine is running. On the 3800 V6 engine, the oil pressure should be 20 to 120 psi (140 to 827 kPa). On the 5.7L V8 engine, oil pressure should be 20 to 80 psi (140 to 550 kPa). NOTICE: Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. 2-95