For what it is worth. This is my first new FCA product. Have you looked at what Ram's competitors are putting on their stickers versus what is real life? Go visit some other forums and read their comments. As far as window sticker versus real life for my Ram, I fully expect to hit those numbers based on what I am seeing so far. I think all of the manufacturers post numbers based on ideal situations (temp, altitude, speed, fuel, tune, configuration, wax, etc). From what I can see I think the Ram numbers are the most realistic of the bunch. One opinion.
Of course I reserve the right to change that opinion, alter or delete this post, and any other form of back tracking.