The delco pf filters are sucky to me because they're overpriced for what they are, The supertech MP filters are cheaper and better but so are the, stp, and wix ones. I have the fram tough guards installed right now. Great filtration to 20um at 99%.I didn’t think so, so I wanted to confirm. Makes sense. I’m going to change it tomorrow. Suggestions on filter? I’m reading the regular ac delco pf filter is crap now and to get the UPF one. Also see Wix comes highly recommended.