Geocritter wrote:
What kind of between-overhaul mileage can one expect to get from a well-maintained large bore gasoline engine?
It's becoming pretty rare to overhaul an RV engine or transmission. Once you start getting usage high enough to consider reworking the power train the costs involved may exceed the value of the coach. The question becomes one of economics.
Maintenance of the power train is only 1/2 the picture, usage is the other. If the coach is loaded to max GVWR and towing 5K Lbs. daily up and down I70 between Denver and Grand Junction then the expect life of the power train might be a bit less than average.
