I have a Hustler X-One with the FX-730 Kawasaki 23.5 HP, just cut my 5 acres yesterday and used 2.5 gal in 1 3/4 hrs. I had a JD X485 EFI that used 4 gallons for all 5 acres in 3 1/4 hrs, what time and money I will be saving, love my Hustler even more.