It depends on what color the smoke is. If it is white smoke that usually mean coolant is in the oil and that can be a result of a blown head gasket. If it is a greyish bluish color then it is oil burning. if it is black then you are burning gas.
Blue.
Blue smoke is burning oil.Blue smoke is burning oil.
if the smoke color is blue, then you are burning oil. look for an oil leak near or on the exhaust system.
blue/white= oil white=antifreeze black=fuel
Burning oil emits blue smoke. Black smoke is caused by an overly rich fuel mixture. White smoke is coolant entering the combustion chamber.
Common cause is burning oil.? no no no blue smoke is more from burning oil. black will come more from NOT burning all the gasoline in the fuel mix, and can be from loose or not secure vacuum. be sure to check the carb bolts and gasket...
Blue exhaust smoke is burning oil.
burning oil = blue smoke
Burning oil
Black smoke means you're burning fuel, blue smoke, you're burning oil, white smoke, you're burning coolant.
Depends on the color of the smoke:light blue/white sweet smelling smoke, a coolant leak into crankcase.dark black smoke, an oil leak into the cylinders.etc.Check with your mechanic.