Originally Posted By: aquariuscsm
To make sure I understand correctly,if you blow air through the center hole and air leaks through,then that`s bad? I did that with my current Wix and it leaked air all over the place with no resistance at all. I tried that with my last Fram TG and no air whatsoever would leak. So which is better? The Wix or the Fram based on the air test?
Yep ... if you blow air into the center hole and air continually leaks out, then the ADBV is not sealing. If the ADBV seals 100% then it would feel like you're blowing into a beer bottle, and you couldn't blow any more air into it.
Which WIX filter was it? I'm suspecting one with the "combo" ADBV/bypass valve setup.