1998 Buick Regal Owner's Manual - Page 146

Low Oil LevelLight Don't keep driving if the oil pressL-d low. If is you do, your engine can become hot that it so catches fire.You or others couldbe burned. Check your oil as soonas possible and have your vehicle serviced. Your engine is equipped with an oil level monitoring system. When the ignition key is turned on, the LOW OIL light will come on briefly. LOW OIL I NOTICE: Damage to your engine from neglected oil problems can be costly and not covered by is your warranty. If the light does come on briefly, have it fixed so it not will be ready to warn you if there's a problem. If the light stays on, stop the vehicle on a level surface and turn the engine off. Check the oil level using the engine oil dipstick. (See "Engine Oil" in the Index.) If the light does not flash, have the low oil levelsensor system repaired so it will be ready to warn you if there's a problem. The oil level monitoring system only checks oil level during the brief period between key on and engine crank. It does not monitor engine oil level when the engine isrunning. Additionally, an oil level check is only performed if the engine has been turned off for a considerable period of time, allowing the oil normally in circulation to drain back into the oil pan. 2-72