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What does black smoke from the exhaust mean?

Answer:

Unburnt fuel.

Contributor:

Rdrsh

First answer by Rdrsh. Last edit by Rdrsh. Contributor trust: 863 [recommend contributor ]. Question popularity: 0 [recommend question].

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If you have black smoke coming out from the exhaust does that mean car overheating?
Your oil is probably leaking.If the car is old, then it's likely to be scrap!
What does it mean when exhaust is blowing black and blue smoke?
Black and blue smoke means your engine is burning oil. That is bad. You may have a blown head gasket. That is very bad. You may have worn piston rings. That is also bad. I have no idea why your...
Black smoke from the exhaust pipe?
Black smoke is ALWAYS too much gas going through the engine. They get bad gas mileage. See a mechanic.
What does white smoke from exhaust mean?
That means you have WATER leaking into the combustion chamber. BAD head gasket, Intake gasket leaking into the cylinder heads ( NOT COMMON ) Head cracked in are around the valves / from overheating....
Why is black smoke coming out the exhaust?
It is buring oil this is a wrong answer whe engine burn oil to the exhaust smoke is a heavy white smoke no black