Blown Head gasket. Recommend getting it replaced ASAP
Quality of fuel plays major role in smoke emission
water
blue smoke is oil. white smoke is water. black smoke is unburnt fuel
depends on the color of smoke... white=water black=fuel blue=oil
White smoke normally means you are burning oil.
there may be leakage in your coolant water cap at the time of starting vibration causes water to escape from it entering in to the engine causes white smoke
oil getting by the rings causes white smoke and oil dripping out of the tailpipe.
Water vapour due to condensation in the exhaust pipe.
white smoke can be either your car overheating, or smoke from an electrical issue
Any vehical which emits white smoke out the back means there is a problem with the engine burning oil. Check the tail pipe to see if it is dripping a mixture of water and oil.
Usually white smoke means that water is getting into the combustion chamber, indicating that you have a leaking head gasket. This is serious and should be checked by a trained mechanic.
White smoke means head gasket, cracked head or equivelant.