In a diesel engine, blue smoke is an indication of oil being burned. Black smoke means that there is incomplete combustion of the fuel. White smoke can be seen when raw diesel fuel is not being burned.
Black smoke, from any diesel, is the result of partially burned fuel. Overfueling will cause black smoke.
White smoke is a coolant leak Black is a rich condition Blue is burnt oil.
The black smoke that a diesel engine blows out is fuel that is unburned. The black smoke can be caused from over-fueling, poor fuel quality, or dirty or worn fuel injectors.
White smoke means water, blue/black smoke means oil, black smoke can also mean the fuel mixture is too rich.
yes...the lack of air would causes excessive fuel which would cause black smoke.
changed engine
Unburnt fuel in exhaust.
water
when it get really humid or very cold
unburnt fuel
Blue smoke is caused by engine oil being burnt by the engine.
Moisture in the exhaust, or a cold running engine.