I know what Ive read. Propaganda, scuttle butt etc etc. Anyone here actually have witnessed and experienced a propane fleet? Only propane equipment I have used has been skid steers for going in and out of buildings, I have never worked for, with, or consulted for a company with a propane mower fleet and/or flex fuel vehicles. what is the impact? REfueling? keeping stock fuel? financial advantages? Disadvantages? supposed increase engine life? what about repairs? Increased time on ROI? anyone have this?