Do what you want but Ive now owned Chrysler products since 1997, nothing elese except a kia soul to drive back and forth to work. And I can say that of all the products I have owned chrysler cars and trucks have been by far better than any Ford or Chevrolet I have ever owned.
Now Im not an ordinary owner, I do all my service and repair work myself. And when I do an oil change, and normal maintenance, Im looking for anything that could be wrong, everytime. I change my oil at 3500 miles, I dont care what any books says, or the computer suggests. Automatic trans.fluid and filter 30k reguardless what the book says, rear end fluid, front axle and transfer case 15k the first time then 30k everytime afterwards. And to date, not one car or truck since 1997 has ever had any engine, trans , rear end, transfer case or front axle issues...not one. So say what you will I am convinced that my way works for me, it may not work for anyone else, but it works for me. I dont care what type of oil I use, it will meet chrysler specs, and Im not using any type of preferred fluid, just meets the specs, and change it. No fluid is a lifetime fluid, and all fluid should either be changed and if possible run through a filter. I do believe in decent filters. And if I have a chance to increase the fluid capacity, i.e. a deep trans pan, Ill do that . Ive done this for all my cars and trucks, and so far chrysler has held up the best of any American car company. Take this for what is worth, to date Ive owned many cars and trucks, treat them all the same, and had better luck with chrysler than any of them. Maybe this will help someone else.