2003 Cadillac Seville Owner's Manual - Page 266

If the oil is at or below the cross-hatched area ai ihe tip of the dipstick, then you'll need to add at least one quart of oil. But you must use the right kind. This part explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and §pecifications on page 5- 100. The engine oil fi!! cap is located behind the radiator on the passenger's side of the vehicle. For more information on location, see Engine Compartment Overview on page 5- 14. Notice: Don't add too much oil. if your engine has so much oil that the oil level gets above the upper mark that shows the proper operating range, your engine could be damaged. Turn the cap counterclockwise to remove it. Be sure to fill it enough to put the level somewhere in the proper operating range in the cross-hatched area. Push the dipstick all the way back in when you're through. 5-17