Pontiac 2001 Sunfire Owner's Manual page 259

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.
This is where you add oil if you have a 2.2L L4 engine.
See "Engine Compartment Overview" in the Index for
more information on location.
6-14
This is where you add oil if you have a 2.4L L4 engine.
See "Engine Compartment Overview" in the Index for
more information on location.
Be sure to fill it enough to put the level somewhere in
the proper operating range. Push the dipstick all the way
back in when you're through.