AC Delco PF64 equivalence. In use on my Regal 2.0 LTG engine for 7343 miles. Primarily during engine break-in with 2 fills of PPE 0w-40. Removed and replaced with another. Typical Wix sturdy build and base-end bypass and silicone ADBV. Plan going forward is 8-16k filter changes with 4K oil changes. GM says 7.5k oil & filter max, based on OLM. Euro cars go 18k miles/1yr.
Last edited by LotI; 11/12/1907:23 PM. Reason: Silicone, not nitrile
What's interesting to me about this XP, this application uses Wix thread end bypass found on most standard Wix/NG filters. I've only seen the XP/NP with dome end bypass to this point. So a first here afaik. Looks good to me.