On The Go Outtake: The Smoky Buick Verano

As I followed this Verano in traffic, I saw distinct plumelets of smoke emit from its tailpipe, seemingly when the throttle was first closed; or maybe the other way around. Cars’ exhausts are so clean these days, and seem to stay that way for a long time, it was a bit surprising to see an eight year old car smoking.

By the time I could get my phone in hand and close enough to get a shot, it was making a left turn, and motionless, hence no visible smoke. But the blackened bumper is the tell-tale of its dirty little habit. Are these known to have engine issues?