I agreeI wheel all day long on a 10 gallon tank in the Mule and it has a big block V8 in it. My fuel (trail) mileage has increased a bunch. I see where others posted they lost horsepower but my with rig I gained horsepower. Once installed I started snapping chomoly stub shafts (1 ton 35 spline) and Warn premium lockouts (also 35 spline). After that I replaced the axle shafts with chromoly inner and outers - needless to say I shelled out the ring and pinion. I don't know what is so different about my propane setup but on my rig it was a night and day difference. I recommend it to everyone I wheel with.