How do you check supercharger oil for Buick ultra?

To check the supercharger oil on a Buick Ultra, first ensure the engine is cool and the vehicle is on a level surface. Locate the supercharger oil fill plug, usually found on the top or side of the supercharger unit. Remove the plug and use a dipstick or a clean finger to check the oil level; it should be within the designated range. If the oil is low, add the recommended supercharger oil until the correct level is reached.