I just drove 6hrs one way 75-80mph couple hours later drove 6hrs back 75-80mph
No problems it actually runs better more power really smooth and quite just purrs and my gas milage is a lot better than it ever has been
I'm thinking it's the Marvel's Mystery Oil
I kinda don't think there's anything wrong with the cam or lifters not with only 118,000 very mild driven well maintenance I know the history and I'm second owner I think just a fluke that I caught in time and quit driving it not the norm just send it keep driving it tell she breaks naw that ain't funny to me