The expected mileage is based on an EPA test cycle that specifies that one should drive like that. Manufacturers are simply learning to design engine systems that are incrementally more efficient in such driving conditions.With all due respect to whoever posted the video which I did watch and was helpful, and all due respect to the Car Care Nut...but that's bull crap. I shouldn't have to drive my car like I'm playing some kind of minigame to get the expected gas mileage.