Yep, I'm aware of all that. That's why I was curious to see what the Purolator filters looked like, knowing that Purolator makes the MC offering.
Right now, I've got a stash of Wix, K&N, FRAM, MC, Purolator, SuperTech, and AC Delco oil filters (12 in all) that I've cut open. It's been a VERY...