Hey guys.... A friend of mine found this link:
http://people.msoe.edu/~yoderw/oilfilterstudy/ oilfilterstudy.html#measure
Not too sure how current the info is, but the Wix filters did pass this guy's test........
Anybody have any updated info, please share it with the rest of us.......
No affiliation/connection/etc., with the filter tester........ Take care, Chuck Phoenix AZ
