I will cut and paste an article from yourlast'Fram Battle' :
Another thing you seem to not consider. Take a Fram's filter media. rated for, say, 20 microns. and say, 75 sq inches of total area of media. Can the media filter this 20 micron stuff out? more than likely, yes. Now, take say, a Supertech. rated for, say 20 microns also. but has 100 sq inches of media (cut each one open, or look at the first posting on this subject, you will see more media in the Super Tech) will the Super Tech filter 20? yes, also. OK, both boxes say they can do it, so must be true right? good. Now, take that same Fram and Super Tech filter and run them for 5k miles on the SAME brand oil, engines, driving conditions, etc. Now, it comes down to how much media in the Fram is clooged with 20 micron crud vs how much of the Super Tech's media is clogged with 20 micron crud. A bigger percentage of the Fram will clog before the Super Tech ( I am using Super Tech for Example, because it sits right next to the Frams at Walmart)and go into Bypass sooner. This is #1 for people 'shedding the orange'. the second is problems with ( and well-documented ones- look them up) the ADBV. the cardboard endcaps are simply NOT strong enough to keep the element and core of the filter straight enough so that the ADBV sorta cocks itself on the top lid and ultimately leaks causing the much described, much documented "empty filters when removed" and the "engine rod-knocked on start momentarily and replacing the filter stopped it" syndrome. So 2 reasons of inferiority.
1. the media is smaller in total area
2. the ADBV cannot seal well due to the flexibility of the end-caps
Now the third...
I have read the BS response from Fram about why they went to the steel end-caps on their "higher quality" filters. they say it is a glue issue. Funny how most all major manufacturers of filter use the same glue on their METAL end caps, without a problem. So that tells me the glue used on the Cardboarded filters is inferior in itself, as it cannot handle metal end-caps. cost cutting measure again?
So now I hope you have a better understanding of why the Fram filters are not generally well-liked on this forum. I am sure you have people that went 1 gadzillion miles on their Fram-equipped car. But consider this.....could they have gone 2 gadzillion if they used that Super Tech filter sitting right beside the Orange ones at the local Walmart?.............
This question on the cardboard was answered then. your debate then was that the cardboard sealed as well as metal. Now you say "Cardboad is not used to seal the ADVB in a Fram filter. Cardboard is used as a sealing medium in the filter". So tell me what/where the cardboard is/does/seals?
Yes, people have reported problems with other filters' ADBV..however, it seems there has been an unusually high number of them being Fram. I just think that using an equal amount of filters, more failures of this ADBV will occur with the Fram filter than with other brands.
AS for the mans posting about the UOA, it does not upset me in any way, but does it not fall under the 'I had a friend who/I heard from So-and So who/ I read it on the internet kind of proof?