It seems to me the new EPA estimates are low. I don't think I'm a particularly economical driver but I usually get better than the current ratings. I regularly rent cars and drive them several hundred miles. Last year I drove a V6 Escape on my usual route (lot's of 75-80
mph interstate, a run up to 8000 ft elevation etc.) and got 26mpg calculated by the fill up amount and the in car computer. Last week I drove an Impala (hated it) on the same route and got between 28 and 29. I've been able to get about 23 with an Explorer with a six cylinder (terrible performance) and 33 with a Chevy Cobalt (better car than expected).
I have no idea what I could get with our FEH - my wife seldom lets me drive it - but she gets 36 to 38 when the weather is moderate.