Do what you want, but the Pennzoil Ultra Premium is the only oil that I am aware of that FCA has tested to meet their MS-12633 standards. That doesn't mean it's any better, just that it is approved for warranty.

And why would you pay $10 for an FCA approved oil filter and then save a few bucks on unapproved oil?

Did you read those threads from Hellcat.org? This subject has been repeatedly beat to death over there.