I really appreciate martion007 posting his findings. I am not surprised at all by what you found by setting you H&S to mild. That would be the only way for anyone to increase fuel economy after deleting EGR, DPF, and CATS (yes there are 2 of them).
The stock programing is setup to run cold and dump fuel to cause the 2 CATs to heat up enough to burn off soot in the DPF when required. The timing is delayed for temp control so the combustion process stay's cold enough so as not to produce any unnecessary NOx.
I think the EPA needs to do a honest check of the marching orders they are following. I can't see how causing Diesel engines to burn less efficiently helps with keeping the air cleaner. Hear me out before saying I am missing the point. Believe me I think about it a lot as the dollar signs click by. Things that are being over looked at these:
Burning more diesel require bigger demand for it, price goes up.
Hauling more diesel requires more trucks to bring it to market. More pollution from said trucks. Oh and they have to meet new EPA regs as well. So now they burn less efficient as well.
More Tankers coming into port to meet the new demand for fuel, do to stricter emissions requirement. Equals more pollution from ships burning diesel or heavy fuel oil (doubt they meet all the current emission we have to).
This doesn't even count the amount of diesel spills that are caused by having to haul more to meet demand. Spills from having to fill your tank more frequent. Change your filters more often etc. More Pollution!
Oh and lets not forget the more frequent oil changes because Cummins/RAM chose to be cheap and take a sample of exhaust PRE DPF so we get a soot filled charge from the EGR all the time. ( I see some European auto makes have choose to take the EGR sample after DPF. I wonder why???)
This is just a few of the things that I see right off the top.
So my bet is the race to clean the exhaust has created new pollution hazards that weren't thought of because most people don't think past what they are told to do. How many of you reading this fall into this category??? I am always thinking about how things work and what might happen if I did this. About the only time I don't, is when I am so mad because of something that has happen to me, or my kids have just broke the last preverbal straw. You know what I mean. A lot of times I end up regretting it.
So don't you think it's time for a reality/sanity/is this really the best coarse check of our EPA??? I do!
VOTE for me "CHRIS BRANDT" for President 2012 LOL!
:-laf