I have always heard that Scag's DFI motor was great on fuel but I keep reading threads on here about guys saying it uses 2 gallons per hour, and Scag rates it at 1.6 per hour. WTF??? My Gravely 260Z with a 27 Kohler has been averaging 1.29 (5.4 hours out of 7 gallons). This was averaged in cutting mostly rough conditions (wet, double cutting,etc.). So what gives? What are you guys getting on your mowers?