yeah man they are awesome engines. MTU bought the license from detroit and they still make them because so many military and industrial vehicles worldwide use them.
they are very stingy on fuel if you stay 'out of it' but they can turn a lot of fuel into a lot of power real quick if you 'give it the beans'
having grown up going to tractor pulls with my dad, there is nothing that compares to that high rpm ground shaking whine when one really starts to jam. i myself have thought 'how can i own one of these someday' and the only reasonable answer is 'greyhound bus converted rv' it would be awesome to take one over the continental divide or soemthing where you could really make it work.