Originally Posted By: ZeeOSix
Inward collapsed cartridge filters seem to occur quite a bit. Could be from them being compressed by the housing cap, and/or the filter loading up and causing high delta-p. If the filter was collapsed a little during the installation, then the delta-p just adds to the inward collapsing movement.
I'm also wondering if the filter bypass valve in the engine is working correctly. Could be the bypass valve is faulty and allowing much higher dealt-p to occur across the filter.
I'm not sure how the filter looked once it was installed. Everything just screwed together and seemed fine. There is a valve in the bottom of the filter cage that I pushed on to make sure it moved, and it did.
That was the first oil change I did on that vehicle (in my possession). Champ filters had always been pretty good in the past, at least their screw on filters. Being the first time I changed it on this car I figured it would be fine. It looked like a quality filter before it was installed. There are not many local choices for these filters. Fram, the dealer (which I may try next time), and Wix. I guess I will see how this Fram works out. I may pull the filter canister after a couple of thousand miles to just to take a peek to see how it is looking.