My dealer, Bettenhausen (yes the race family) informed me twice that MOPAR DEF is not a requirement. Once by the parts manager and once by sales. You may use any manufacturer's fluid that meets the API specs.
In the dealer provided Owner's Manual supplement (below) it specifies to only use API certified fluid. See bullet six. It does not say to use MOPAR only DEF (antifreeze, brake fluid, oil, either for that matter).
Also see note at the end. Don't keep topping off the fluid. Use it down then add it. If you keep topping if off you can have some going bad on shelf life in the new/old blend.
See a lawyer if they give you grief about using other than MOPAR DEF.
In the dealer provided Owner's Manual supplement (below) it specifies to only use API certified fluid. See bullet six. It does not say to use MOPAR only DEF (antifreeze, brake fluid, oil, either for that matter).
Also see note at the end. Don't keep topping off the fluid. Use it down then add it. If you keep topping if off you can have some going bad on shelf life in the new/old blend.
See a lawyer if they give you grief about using other than MOPAR DEF.
