Amsoil states 5.5 quarts, and they're normally right on the mark, but that's to FULL capacity. As ralthoff mentioned, if you use just over 5 quarts you should be in between the minimum and full marks on the dipstick, which is where the oil level should be unless your 3.6 consumes oil throughout an oil change, then it's best to put more in from the get go.
'00 Dodge Durango - 5.9L V8; 233,000kms
'06 Pontiac G6 GT - 3.5L V6; 82,000kms
'12 Chrysler 200 - 3.6L V6; 22,000kms