Pontiac 1997 Grand Am Owner's Manual page 241

When to Add Oil
If the oil is at or below the ADD line, then you'll need
to add at least 1 quart of 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.
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.
2.4L Engine
The 2.4L engine oil fill cap is located on the passenger's
side of the engine compartment on the engine block.
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