Well since you are not certain what exactly is burning , myself and others listed a few scenarios to how each type will look and act when burned. Ignore the rest of the ignorance Also just because you replaced the lim gasket doesn't clear the chance it could have been installed incorrectly. When the car is off the coolant will seep and build up causing a larger then normal cloud at start up. But as seen before , with another member , it was all in his head. He changed his gasket , saw normal moisture in the exhaust and figured it had to be burning coolant