An oil - thirsty driver and smoke rising from car 's tailpipe are signs of trouble . What should I do ? Bad valve seals or worn guides , broken exhaust valves , worn piston rings among causes . White smoke : Water condensation from blown head gasket , too much oil . Blue smoke : Engine oil is being burned in the combustion chamber .
An oil - thirsty driver and smoke rising from car 's tailpipe are signs of trouble . Bad valve seals or worn guides , broken exhaust valves , worn piston rings among causes . White smoke : Water condensation from blown head gasket , too much oil . Blue smoke : Engine oil is being burned in the combustion chamber .