You guys using k&n oil filters keep a check on them that they don't start leaking. I had used k&n for years untill the first one I put on my Hemi leaked, not using them anymore. Also, the nut is not for installation, it's for removal only.
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YEPPP, agreed..!!! I used K&N twice on my previous 2014 hemi truck, both K&N oil filters leaked, badly. Buddy of mine at work used K&N on his hemi truck, same problem, started leaking from day one. No more K&N products for me. I`ve since switched to Mobil premium (synthetic) oil filters... first thing i notice, the anti-drainback designed into their filters are the best i`ve ever seen. My cold starts have INSTANT oil pressure on an actual analog gauge, which tells me that the oil is not draining back into the oil pan like most oil filters seem to do, even though they tell you that they dont drain back. The K&N was actually the worst for draining back. I use Pennzoil Platinum 5w20. I`m not a snake oil fan, pennzoil is what they recommend, thats what i`ll use. Buy a 5qt jug at wal-mart $22 each. I usually buy 3 of the 5qt jugs at a time, because i have a hemi RT charger to feed too.