1994 Cadillac Seville Owner's Manual - Page 267

To Check EngineOil Pull out thedipstick and clean it with paper towel or cloth, then push it a back.in all the way. Removeit again, keepingthe tip lower, and check the level. when to Add Oil If the oil isat or below the ADD line, ADD mark, then you'll need to add the some oil.But you must use right kind. This section explains what kind of oil to use. For crankcase capacity, "Capacities and Specifications" see in the Index. 254