Neyc, is the system on your bocat an EGR system? Or is it an exhaust gas filter? I am familiar with systems that capture idle exhaust from stationary vehicles (like the fire departments use on trucks in the garages) and I have read about the newer diesel engines with EGR systems like gas engines have.
I would think this woud be a benefit to diesels like it was to gas engines, make a more efficient burn.
Check out this forum there are a lot of knowledgable people on it.
http://www.dieselforum.com