Finally got around to changing my oil (12 hours) and man that factory filter was on there TIGHT! Of course it didn't help that the filter tool I had on hand wouldn't work and the one I bought from the cycle shop didn't fit this one. It seems Yammy changed oil filters for the Wolverine and the one that came from the factory is no longer available. The new filter tool fits the new filter so I should be good to go from now on but it was a chore this morning! I was going to do the rear diff but I made the mistake of rewarding myself with a beer after the filter debacle and now I think I'm done til tomorrow.