Wow what a difference!
I'm getting my engine together and thought I would get some oil, the oil was cheaper with a stp filter so I took the combo.
This is on my 2.3 turbo engine and I've ran nothing but wix filters, I pulled the STP filter out of the box and just laughed.
I'll admit its a pita to take wix oil filters off because they sit so close to the steering shaft but I guess its worth it.
Here's a pic of the stp and a wix filter that has been sitting out for a while.