With diesels, or even gasoline auxiliaries for that matter:
http://minimopar.knizefamily.net/oilfilter-fram1.txt
Bumped into it on this page:
http://minimopar.knizefamily.net/oilfilterstudy.html
May want to take apart my new oil filter before I install that brand, which
won't be a Fram.
John Cairns