- Aug 20, 2003
- Naperville, IL
All, This is a AC Delco PF 2232 run for 5,500 miles on my Duramax. The filter appears to be of good quality and appears to be a the same filter as the Mobil 1 303A. I saw a few metal flakes, which I would call normal, as it's what I see in virtually all oil filters when cut open.