Got my teryx couple days ago, can't get my wife off of it - I did say "of it" - not "on it." Getting about thru the second tank of gas. Anybody got a guess of what kind of MPG this thing is getting. I've been driving pretty hilly and muddy terain and I am guessing about 10 - 12 MPG. I also know the t-rex definitely needs a back bumper, in fact for me...it is a must. I have not got a winch yet...2nd other must have. Glad to be here, hope we can share some ideas to better all our Teryx's.