I want to change my oil and don't know if the oil filter is a cartridge type, which I've never changed, or a twist on type.
oil filter cartridge or twist on 2006 Mercury Milan
yes 2006 is a cartridge type filter , good luck finding , costly
I don't especially know the '06 Milan but I haven't seen a cartridge type oil filter in many years. Take a look and see for yourself (you'll have to if you're planning to change the oil), or go to an auto parts store and look it up.