It really is as clean as the company claims--the diesel exhaust smelled very similar to gasoline exhaust--not a hint of acrid sulfur, not a wisp of smoke either. And those terminator tips would be coal black on a standard diesel--looks like the particulate filter really does grab the soot and keep it out of the air.
And those louvers punched into the terminators are functional. According to the engineers, if those become clogged with debris, the efficiency of the exhaust scrubbers drops tremendously. The owner's manual even recommends spaying water through the louvers at each washing to keep them clean. These guys are dead serious about squeaky clean emissions.
Read more: 2008 F-250 Super Duty 4X4 Diesel test drive and review
Read more: 2008 F-250 Super Duty 4X4 Diesel test drive and review