Not sure the picture will come out on computer screens, but I was going to run a Fram TG3600 and get a particle count on our RX330, but when I took it out of the box, I noticed an unusual indent along the top of the filter. Of course, I can't find the Wal-Mart receipt and I decided to put on a Toyota filter that I had in my stash after seeing that. Would the BITOG faithful have used this filter? Any ideas what happened?