I was picking up a new oil filter and o-rings yesterday. For the filter assembly, I've got the large o-ring for the spring loaded cover and two o-rings for the ends for the filter.
I have the newer cover with the bolt that holds the sprung plate assembly together. There's also a small o-ring for the shaft of the cover that protrudes into the filter. Do I need that small o-ring for the newer cover? I don't remember it being there when I did the last oil change.
Scott