ALL ATF+4 is the same!
Chrysler is such a control freak about this stuff. It's not just performance specs. Chrysler goes further and not only requires specific ingredients, they even specify the suppliers of those ingredients. A specific group III oil from either Shell, Petro-Canada, or SK. The only permitted add pack is from Lubrizol.
So whether you get Mopar from the dealer, or cheap Walmart ATF+4, it's all the same.
Avoid Redline C+ because it's NOT licensed ATF+4, and they engage in childish price fixing.