All I really know about it is what I heard these two guys comment. The one neighbor owned the MX's, the other guy drove the JD's as an employee. The MX owner commented, man, our 240's use X amount of fuel, it sure seems bad. The other guy commented, heck that's nothing, we use at least X much more than that. They were talking about Gallons of fuel per hour. Seems the MX was using about 12 under a hard pull, and the Deere was using up around 14. However, the Deere's never have been as good on fuel as the IH's, or the Magnums. Chads