4th. Generation Chrysler Minivans: 2001-2007
I know this is an old post, but still relevant.
Any new-to-you vehicle, I would drop the pan, new filter and clean magnet and pan.
Use the proper filter, make sure it "Clicks-in" properly.
Use +4 fluid, and no other additives. DO NOT OVERFILL!
The new pan with drain plug is a great idea.