The 2014 Ram 2500 6.7L I6 Cummins Diesel repair data is free for every DIYer and shop on earth, permanently, because Lost Pines Precision Automotive, Bastrop, TX paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like Lost.