Not sure if this was posted before... I did a search for it, and nothing came up, so here goes nothing

I know the Oil Choice topic has been beaten to death, but not much on filters. Might want to check these out, some interesting information on filters here.

http://minimopar.knizefamily.net/oilfilterstudy.html
http://minimopar.knizefamily.net/oilfilters.html

 

This site also provides good information, but it is temporarily down because of a server crash and loss of files. He is working to try and get it back up and running, a lot of good information. Keep checking to see if it comes back up, filtering and flow information are both on the site.

Oil filter study