Two things are certain. OP has contradicted himself, and most service departments think that the Ecodiesel is made by Cummins. These guys can't even put the right viscosity in our motors during an oil change, now all of a sudden they are ECM and GDE experts. They can't detect a leaking EGR, but now they are tune sleuths.
I agree with the poster who recently exclaimed that he will be glad when we get back to talking about EGRs and blown engines. I swear you guys are taking the flash for cash way too serious. I hope the Ford and Chevy guys aren't reading all these silly "sky is falling" posts. They will think we are a bunch of dolts.