1995 Cadillac Seville Owner's Manual - Page 282

To Check Engine Oil Pull out thedipstick and clean it with a papertowel or cloth, then pushit back in all the way. Remove itagain, keeping the tip down, and check the level. Wiben to Add Oil If ,the oil is at or below the ADD line, then you'll need to add some oil. But you must use the right kind. This part explains what kind of oil to use. For crankcase capacity, see "Capacities and Specifications" in the Index. - - Don't add too muchoil. 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.