Picked up my new Ram 3500 yesterday and they informed me that I have to use mopar def fluid in order to not damage the system...have you other Ram owners experienced the same story?
Go into the dealership and tell the service manager you want that put in writing and signed by him and the owner of the dealership.
It will be fun to watch how their story changes and they start to stammer like Daffy Duck. :B Be sure to post it onto Youtube so all of us can enjoy! :B