Dude, just stop flat out lying. That is not what Chrysler says as proven by a ridiculous number of people on here so you're either a troll or confused. It literally says, in the manual, that 87 is the recommended fuel for the engine. The service departments all verify its 87 as the recommended fuel. Its the same recommendation across all the Gen2 3.6s in the lineup.This engine seems temperamental with all the issues going on with it. Rocker arms, valve issues, cam bearing etc. if Chrysler suggest premium gas then so be it. It’s not a huge cost. All I can say is there are loads of mechanics on YouTube who say this engine has problems. I never had to worry about rocker arms in my 4.2 liter. It’s insane for a modern engine to have such issues.
I know this as do lots of other people, but you can confuse some other people that don't know better.