I tried out the K&N HP-1010 oil filter on my 2018 Subaru Outback 2.5L. I got a deal on at AAP for buying it with the oil and I am disappointed with it. Of note though when I began unscrewing the oil filter it seems like the entire content of oil came rushing out and began to pool around the filter rather quickly. I don't recall having this happen with any of the other oil filters I have used on my 2018 Outbacks. It uses a nitrile anti-drainback valve that apparently ceased to function as intended during the 6000 mile interval. Aside from that the engine just seemed a little off, it just didn't run as well as it did when using a Subaru OEM blue oil filter or a Fram Ultra Synthetic oil filter. I remember at one point just a few days after putting the K&N on that I started up the car and it ran for about 30 seconds and then just stopped for no reason. It could be a lot of things but it never happened otherwise. I will not be buying another K&N oil filter.