Quote Originally Posted by migoreng View Post
It's winter...

Haven't you seen other cars around your area blow white smoke in the morning? It's just steam/condensation in the exhaust system.

And you shouldn't idle for 20 mins. Start, do whatever you need to do for 30secs-1min then drive gently for 5-10mins.
Yeah I have seen white smoke from a cold day on a lot of cars. But I do not see cars which puff so much smoke on a winter day that it would fly over my fence and cover their back yard completely