You know that Ford and GM use Tremec as well. What is different about Dodge's transmission fluid?
I always go with manufacture spec and avoid the snake oil. If amsoil and RP made such a big difference the auto manufactures would use it. They are just taking your money.
Maybe because it was low from the factory and that was the problem. Looks like they need to figure out how to get a grip on quality control.I changed mine at 500 miles to RP with synchromesh and glad I did the trans was a qt low from the factory could not believe it. the trans shifts much better now and seems quieter also