[Guy]

On a positive note, a  new engine may indicate the problem had been "resolved" if the coach had a defective ISX with the dreaded #6 cylinder issue related to def. I have noticed that many coaches never get a lot of miles on them before catastrophic engine  failure.  These failures are  often due to long periods of storage, and lack of preventative maintenance, cooling issues , dried out seals and gaskets, broken belts etc, . 100,000  miles on a semi truck may happen in a year. There are many 20 year old Newells out there that still don't have that on the odometer. Just my 2 cents as Tom would say, but I would rather purchase a higher mileage coach in good condition than a stored low mileage one.