At AAP, the AC Delco classic PF47 is $4.29. I pay $6.49 for Wix 51040 at Oreilly or about the same for Napa Golds. I generally use the Napa Gold/Wix and found them on Rockauto $50 for a case of 12, which makes them about the same price as the AC Delco classic (I think Champ made). Should I bite the bullet and buy a case of the Wix? Is there much of a difference between the Wix (beta ratios 2/20=6/20) and the AC Delco (98% efficiency at 25-30 microns), other than the silicone ADBV in the Wix? I think that construction is similar, but the efficiency I'm unsure about. Which would you choose? The car won't get run past the OLM suggested OCI.
Thoughts?
Thanks.
Thoughts?
Thanks.