exhaust soot
11-09-2013, 06:22 PM
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gone:mb c,lexus gs; owning:2012 a6 prestige
exhaust soot
test drove a 2014 e350 sport today and intentionally checked the tail pipe soot, not the oval tips but the pipe inside and found plenty black soot.
to compare I checked a 2011 e350 sport, the soot is much less. Is the soot of the effect of direct injection?
to compare I checked a 2011 e350 sport, the soot is much less. Is the soot of the effect of direct injection?
