Many times, condensation collects in the exhaust that can cause steam to come out when it first starts to run. However, blue smoke would indicate oil being burned. That could be from many things. Also, true white smoke is often an indicator that the head gasket is bad and allowing coolant to get into the combustion chamber.
If you are not adding coolant, chances are that isn't the problem. Also, if there is no oil consumption, then I really wouldn't think that is an issue either.
Let me know if you have other questions.
Monday, July 29th, 2013 AT 12:55 PM