Ford MUSTANG Manual page 109

5. Wipe the dipstick clean and put it back into
position, making sure it is fully seated.
Engine oil dipstick — 4.6 liter engines
Engine oil dipstick — 3.8 liter engines
6. Carefully, pull the dipstick out again. If the
oil level is below the "ADD 1 QT" line (3.8L)
or at the "MIN" mark (4.6L), add engine oil
as necessary. If the oil level is beyond the
letter "F" in Full (3.8L) or "MAX" (4.6L)
mark, engine damage or high oil
consumption may occur and some oil must
be removed from the engine.
7. Put the dipstick back in and make sure it is
fully seated.
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