Well I guess the 642 like to throw some iron around. I was wondering if my tune had something to do with the higher numbers, but its not really much worse than whats on the board already. Im going to resample with the M1 0/30 I put in to see any difference, but I doubt it. Well see in a year. Overall Im very pleased with the truck, 19 mpg over 6300 miles, avg speed is 28 mph. Feels very solid, and happy with the 4-5 mpg increase over the X3 that it replaced. Over the summer I saw a 24.3 mpg average over 200 miles from a quick trip to the shore and back, which made me very happy. Cant wait for our annual trip down to Smith Mountain Lake!