so where is it smoking from? The exhaust pipe? What color is the smoke? If it's blue smoke, you are burning oil. White smoke could be coolant or nothing. It is cold so it's not unusal to see white smoke from condensation and stuff getting burned off. Nothing wrong there. Check your coolant make sure the coolant level is within specs and keep monitor it. If you don't see any level drop over days, you got nothing to worry about.