GM Service Manual Online
For 1990-2009 cars only

Unless you are technically qualified and have the proper tools, you should let your dealer perform this maintenance.

See Engine Compartment Overview for the supercharger oil fill location.

When to Check

Check oil level every 30,000 miles (50 000 km) or every 36 months, whichever occurs first.

What Kind of Oil to Use

Use only the recommended supercharger oil. See Recommended Fluids and Lubricants .

How to Check and Add Oil

Caution: If you remove the supercharger oil fill plug 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.


Object Number: 871899  Size: A3

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.

  1. Clean the area around the oil fill plug before removing it.
  2. Remove the oil fill plug.
  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 lb-in (10 N·m).