True story. Several years ago I stopped at a RV generator shop in Flagstaff to repair my 4000 watt Onan that would quit running intermittent. Problem fixed with a new fuel pump. My Onan had around 450 hrs on at the time. I was telling the technician that we had a RV Club member that had 1450 hrs on his Onan. The tech said that a properly maintained Onan would last a lot longer than that. He said that north of Flagstaff is an Indian Reservation and all the homes are off the grid. He said that he maintains many Onan generators at these home sites that provide electric power on a 24/7 basis - generators running continuously except stopping for oil changes. These were 4000 watt Omans converted to propane fuel. He said he has one Onan that he services that currently had 38,000 hrs on it. Can anyone out there top that?