[t_g_farrell]

Ok, heres link to a very well done study done by someone thats very methodical
to say the least. The original version was done almost 10 years ago but has been
updated since. This guy covers almost anything you may end up discussing
here. Read up, its a great resource and learning experience. This is one of the
reasons I started using Mobil 1 filters instead of paying more for K&N and so
forth.

This is a link to the complete study.

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

Heres a link to the good stuff on general retail filters.

http://minimopar.knizefamily.net/oil...reference.html