Well here is my findings.... 28hp EFI Kohler on my Hustler SuperZ. 60" XR-7 Deck Keep in mind 21cc hydro pumps and I work my equipment. 5.3 hrs between exact fill-ups on the same pump at the same station. 7.184 gallons were added. That comes to 1.355 gallons/hr This was likely about as normal a 5.3hrs that you could see in November for me. Pretty normal grass growth, nice and thick turf. I was going to let it go another day (for a longer hr average), but I didn't want to stop for fuel next time I'm out as I have a big day planned. So....is this 1.36 gal/hr THAT bad? P.S.....if you divide the figures the other way (the wrong way!) you mysteriously come out with .737 Is this where some guys are coming up with their 3/4 gal/hr figures?