Wix isn’t owned by Carquest, but maybe you didn’t mean that.Motorcraft all the way, or WIX is really good which is the higher end CARQUEST brand. Would not recommend Fram, not impressed by their design.
Are you kidding? Pure Power filters? Really?
I'm in the same camp of saying no to any K&N, because they do not meet Cummins' specifications. They let in too much dust and cause undue wear. That, and they make no noticeable difference in power. Therefore they won't go on anything else I own. On Dad's old F100 with 300 I6, it would make unhappy noises with Fram, so he used the tried and true FL1A. I wouldn't put Fram on anything.For some time, not sure now, Cummins said Fram filters were either not recommended, or not allowed. The reason was the filter media was water soluble, So, if too much moisture got in the oil, you ended up with a bunch of wet paper going through the system and clogging the piston cooling jets, etc. Cummins has their own Stratapore filters which are excellent, and Ram sells them under the Mopar name. I have never run any filter other than Cummins Stratapore on any of my three Cummins trucks. Going from that kind of standard, I wanted to make sure I start out right with the 7.3. And it sounds like Motorcraft is the way to go. And only $4.00? Sheesh. Cheap. There may very well be other ones that are better, but being OEM and factory recommended means a lot.
It reminds me of K&N air filters. "Oh, they are so wonderful and flow so much more air", etc. Of course they do, because they let larger particles through. More sand. Even their own literature talks about how they work better as they get dirty. That means the passages get smaller as they clog, which lets only smaller particles through, so they filter better when dirty. Hilarious.