I thought it might be interesting to compare fuel economy with different set ups for mowing. With our MF 9760, 13ft disc header with single steel on steel conditioner, I can usually achieve about 3 acres per gallon. 6-15 acre contoured fields with some short rows. In first cut It'd be a little below 3 acres to the gallon. I usually run 2nd range, header about 2000 rpms engine at about 1600, hydro wide open runs about 12mph, sometimes a little faster. I just set my top speed with the throttle. On steep fields I'd have to drop down to 1st range and open the throttle up.