Quote:
Originally Posted by Hatterasguy
This is a perfect example of the law of diminishing returns. Modern diesels are clean enough, they don't need this silly filters.
If I bought a new diesel MB I would figure out a hack to remove all this crap. I'm sure in a few years as they get older it will be pretty common.
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You are absolutely correct, my 2003 Dodge is 90% clean with no emission controls at all, and has excellent FE to boot. The oil stays clean almost indefinitely, and after a tank of fuel (which can last 800 miles), the exhaust stain on the bumper is a faint bluish-gold haze. Look at the Diesel Technology Forum's emission chart, and you'll see how much effort has been expended for very little improvement.