decided to cut open my last P1 filter PL 25288 that I had on my winter oci. 5,500 oci with mostly short trips being taken. everything came apart ok and I did not see any tears in the media. the end caps were on solid as can be. did notice a lot of wavy pleats with a couple of them having some larger gaps between them, not a confidence booster. took the pleats and squeezed them my hand and they were solid and did not move at all with some moderate pressure. shining a light at close range did not reveal any tears either. below are some pics.... enjoy !
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6258_zps9eb696fc.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6262_zps06b14f58.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6269_zps8c56e739.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6265_zps53dd9359.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6266_zpsc007ae43.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6258_zps9eb696fc.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6262_zps06b14f58.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6269_zps8c56e739.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6265_zps53dd9359.jpg
http://i62.photobucket.com/albums/h82/flatsticks/IMG_6266_zpsc007ae43.jpg