I now have over 35hours on my ferris IS3100zp we worked this saturday all day did about 7 hours on each machine. the gas hustler went through 13.3 gallons of gas which is;$159.60 down here the Ferris used 1 1/2 tanks of propane which is; $45.00. I am sold propane all the way. The fuel economy has improved drastically now whith higher hours. Oh yeah forgot to mention the hustler which is 27hp did cut through the higher thicker stuff faster than the 32hp propane mower, but the stuff we cut down here you would never face in the U.S. so you will be fine. The ferris is faster than the gas in lower more normal cutting conditions.
Last edited by cimkill; 09-13-2011 at 08:52 PM.