Billowing blue smoke from a car typically indicates oil burning in the combustion chamber. Unlike white smoke, which is often related to coolant, blue smoke signals an issue with engine oil.

A blue tint to your car's emissions is just one of the different colors of exhaust smoke that could indicate a problem. If Your Car Is Burning Oil, What Can You Do About It? The approach to ...

Thick blue or gray smoke that doesn't dissipate quickly ... If your engine is burning enough oil to produce visible exhaust smoke, the oil level will drop over time and require periodic top ...

An American sailor said the Portuguese-flagged cargo ship ‘came out of the blue’ as it smashed into his oil tanker ...