When To Add Engine Oil - Cadillac 2004 CTS Owner's Manual

When to Add Engine Oil

If the oil is at or below the lower mark, then you will
need to add at least one quart of oil. But you must use
the right kind. This section explains what kind of oil
to use. For engine oil crankcase capacity, see
Capacities and Specifications on page 5-106 .
Notice: Do not 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.
3.2L V6 Engine
See Engine Compartment Overview on page 5-12 for
the location of the engine oil fill cap.
Be sure to add enough oil to put the level somewhere
in the proper operating range. Push the dipstick all
the way back in when you are through.
3.6L V6 Engine
5-17