That's great news. I am getting 36.3 MPG on my '06 FHE now and I have 1,400 miles on the odometer. I consistently fill the tank at 13.5 gallons and my trip goes all the way to 490 before the next fill up.

490/13.5 = 36.29 MPG

90 Miles of which are on the freeway daily to and from work but with stop-and-go traffic in some areas. Oh, and I top out at 70MPH and average 65MPH most of the time.

cheers