Blue smoke means oil. Rings or valve seats. your car is burning oil.
burning oil
Burning oil
Stuck or broken oil rings can cause blue smoke.
It could be coolant getting into the exhaust system which could mean that one or more of your car's gaskets are worn out and need repairs
burning too much oil
Blue smoke can be caused by a blown head gasket. . Blue is oil being burned in the engine.
blue smoke can be caused by sticking valves or burnt rings
Blue exhaust fumes are an indication of burning oil, which is mixing with the fuel - probably from a leaking piston ring or valve seal. You definitely need to bring your car to a mechanic for a check-up.
For steam to come out the exhaust you probably have a bad head gasket or a cracked head. If the turbo had an oil seal fail it would cause blue smoke to come out the exhaust.
It is caused by oil getting into the combustion chamber and burning off
yes. Though most call it black not blue.