2003 Buick Regal Owner's Manual - Page 225

Supercharger Oil Unless you are technically qualified and have the proper tools, you should let your dealer or a qualified service center perform this maintenance. 4 If yo, IkmI1ove the supe,,,larger oi, while the engine is hot, pressure may cause hot oil to blow out of the oil fill hole. You may be burned. Do not remove the plug until the engine cools. 1. Clean the area around the oil fill plug before removing it. 2. Remove the oil fill plug. When to Check Check oil level every 30,000 miles (50 000 km) or every 36 months, whichever occurs first. 3. The oil level is correct when it just reaches the bottom of the threads of the inspection hole. 4. Replace the oil plug with the O-ring in place. Tighten to 88 Ib in (10 N-m ). What Kind of Oil to Use Use only the recommendedsupercharger oil. See Part D: Recommended Fluidsand Lubricants on page 6- 15. Engine Air CleanedFilter The engine air cleanedfilter is located underneath a diagonal brace in the engine compartment on the driver's side of the vehicle. See Engine Compartment Overview on page 5-12 for more information on location. How to Check and Add Oil Park the vehicle on a level surface. Check oil only when the engine is cold. Allow the engine to cool two to three hours after running. 5-20