1997 Pontiac Grand Prix Owner's Manual - Page 282

Before closing the hood, be sureall the fillercaps are on properly. Then just pull the hood down and close it firmly. Engine Oil If the LOW OIL LEVEL light on the instrument panel comes on, it means you need to check your engine oil level right away. For more information, see "Low Oil Level Light" in the Index. You should check your engine oil level regularly; this an is added reminder. 3800 Supercharged Engine (If Equipped) Your Pontiac may have a 3800 Supercharged engine. The supercharger is a device which is designed to pump more air into the engine thanwould normally use. it This air mixed with fuel, createsincreased engine power. Since thesupercharger is a pump and is driven from an engine accessory drive belt, increased pressure is available at all driving conditions. LOW OIL LEVEL The powertrain control module (PCM) works with a vacuum control to regulate the increased pressure required during specific driving conditions. When this increased pressure or boost is not desired, such as during idling and light throttle cruising, the excess air that the supercharger is pumping is routed through a bypass. All of these controls, working together provide high performance character and fuel efficiency in the 3800 Supercharged engine. It's a good idea tocheck your engine oil every time you get fuel, In order to get accurate reading, the oil must an be warm and the vehicle must be on level ground. 6-12