Smoke from exhaust when warmed up after parking
 

I recently noticed smoke coming from one or the other tail pipe after parking the car and shutting off the engine. Only happens when the car is fully warmed up. The smoke has no apparent odor and it has the appearance of cigarette smoke. Almost like someone lit a cigarette and stuffed it up the tail pipe and it just sits in there and smokes. The smoke kind of lazily wafts out of the pipe for several minutes - I gave up watching for it to stop.

Any ideas what this could be? My car just turned over 12,000 miles.

Could be moisture caught in the pipes steaming from the heat.

Whitish/greyish in color with no odor? Probably water.

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