On my 01 WR426 I don't remember which way I took the oil filter out in my last oil change and I don't know which way the filter goes. The manual shows the filter but really can't tell which end is which in the diagrams. Does the end with the hole goes towards the inside or the outside of the motor. Hopefully it makes sense. I would assume there is a incorrect installation. Thanks for helping out my retarded side of my brain.