Back in the late 70's early 80's, my dad had a gas power Onan generator in his RV. The summer he went to Alaska the Onan never failed to start and run in the more than 160 days on the road. It also took the punishment of going up and coming back the Alaska highway when more than 500 miles of it was not paved. He put more than 250000 miles on that RV with the same Onan generator.