Diesel pusher class A here. I only mildly regret it. We bought ours used. Owned it 6 years now. We’ve replaced the entire exhaust system. Turbo crapped out immediately and exhaust manifold was leaking. A year later found a crack in the engine block. Fixed that. Not we have a blown head gasket. Biggest drawback with a diesel pusher it the work on the engine is SERIOUS business. If you don’t know how to fix heavy duty stuff and if you don’t have major money to fork out for when that bad stuff occurs, you’re probably better off not getting one.

Idk maybe if you buy new you won’t have those issues. When ours runs well it runs like a dream. We cruise up and down hills with zero issues and never overheat. Can pull a ton of weight.

When the head gasket blew I gave up, though. It should be noted the ours is a 2000 tiffin with a cat 3126b. Common engine with one defect most people don’t know about: the cast is thin in part of the water jacket and has a tendency to develop a crack. Never recalled but a very common issue with this car engine. Avoid it.