1998 Pontiac Grand Prix Owner's Manual - Page 288

Before closing the hood, be sure all filler caps are the on properly. Then pull the hood down and close just it f i i y . Engine Oil 3800 Supercharged Engine (If Equipped) Your vehicle may havea 3800 Supercharged engine. The supercharger is a device which is designed to pump more air intothe engine thanit would normally use. This air, mixed with fuel, creates increased engine i the For more information, "Low Ol Level Light" in see power. Sincethe supercharger is a pump and is driven Index. You should checkyour engine oil level regularly; from an engine accessory drive belt, increased pressure this is an added reminder. is available atall driving conditions. It's a goodidea to check your engine every time you oil The Powertrain Control Module (PCM) works with a get fuel. In order to get an accurate reading, oil must the vacuum control to regulate the increased pressure be warm and vehicle must be on the level ground. required during specific driving conditions. When this increased pressure or boost is not desired, such as during The engine oil dipstick idling and light throttle cruising, the excess air that the handle is the yellow loop supercharger is pumping is routed through a bypass. near thefront of the engine. All of these controls working together provide high performance character and fuel efficiency the in 3800 Supercharged engine. LOW OIL LEVEL If the LOW OIL LEVEL light on the instrument panel comes on,it means you needto check your engine oil level right away. 6-13