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Diesles with excessive smoke
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This is an interesting topic! From my experience in the diesel engine industry--from Cummins engine co--the reason a diesel pours out black smoke comes from one thing: overfueling the engine. This could have many causes---poorly calibrated injectors, delibrate overfueling to gain power, turbo lag, etc etc etc. But if you see black smoke---it's too much fuel in the engine. As mentioned above, a properly calibrated diesel will show virtually no smoke at full load. The real danger of overfueling is the excess fuel washing past the rings and contaminating the oil. Not good!!! <br /> <br />Paul in Atlanta
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