Not an issue. The PUG al as o has less friction which should be translate we into less wear. It is only weighs 4 lbs less. The places they shaved weight won't compromise it. Besides that, there are PUGs in 2016 and 2017 Grand Cherokees pushing past 300k. Time is already speaking on it.The older 3.6 yes. The newer JL's 3.6 has been lightened up, not as heavy duty. Time will tell.