Can the guys at Hustler come up with some figures as to the cost per hour to run some of the mowers? I would be interested in the 52" Hustler Z and Super Z. I also think this should be something listed in the manuals of all manufacturer. Appliance do it. Anyway when we buy a mower we don't always know the life expectancy. By the way what is the life expectancy of a Hustler Z with 23hp Kawi? Basically if the manufacturers would do this it would help a lot of people know their cost of operating. Cost of equipment + cost of parts to upkeep + fuel /divided by equipment expected life hours. I would also like to know the average fuel consumption per hour then we can adjust the gas figure by different gas prices. I'm sure you guys already have these figures somewhere. Can you please post them for the public to see.