You need to spend some time in the transportation industry where brand new Class 8 tractors are purchased. You will find very much the same problems. My son is driving a brand new, just delivered, Peterbilt. He is experiencing much more down time not working because that brand new rig is broken down and in the shop. Every week it is at the Peterbilt shop. I know of two year old Peterbilt that has spent more time in the shop than it has on the road. Cummins can't get the engine's computer to work properly and can't find the problem. Even new computers have not solved the problem. Usually after a year, all the bugs are worked out and the trucking companies can begin to trust those "new" rigs. It is the nature of the heavy truck business.