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I had the van idling the other day while I was looking around the back and the trailer hitch. Felt an odd warm breeze across my face, surprised me for a moment that it was the exhaust! While I didn't stick my face right in it, I did take a good whiff, it certainly did NOT smell like diesel. I guess the SCR and DPF and stuff make a difference.


I also noticed that the inside of the exhaust pipe is totally clean. Wiped it with my finger, got nothing. Granted, I only have 500 miles on the van, but I've seen my Audi gasser soot up the exhaust pipe in under 1000 miles.
 

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Great. If we are going to have the emissions controls then we deserve clean exhaust.... that the point isn't it? In the late 90's I read an article that claimed driving a cleaned up gas car in some of the more polluted cities would actually produce cleaner air out than went in! I wish I had kept the article but the results are clear (pun intended), when we go into almost any inner city it is remarkably better now.
 

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Oh yeah, my 2011 VW TDI has almost 40k miles and the inside the exhaust pipe is still clean. That is not the case with my 2004 Sprinter. I replaced the exhaust a couple of years ago and it was sooted up in less than 100 miles. Those DPF filters do a good job.
 
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