Dodge Cummins Diesel Forum - View Single Post - proper type of smoke question
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post #3 of (permalink) Old 12-10-2013, 11:21 PM
country_hick
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In cold weather diesel fuel does not completely atomize and burn instantly and completely. This lack of burning well creates white smoke. When the truck has warmed up (or is warm enough) black smoke can happen when it first starts or when it gets to much fuel for the air available. My truck would blow a puff of black smoke in summer when I hit the throttle starting. In cold weather (like now) white smoke happens. Both are normal.


If you see white smoke when the truck is warmed up that is not normal.

1997 3500 club cab 3.54 gears towing & camper pkg. Still stock with a built transmission at 120k. 4" exhaust, 4kgsk, and exhaust brake waiting for installation. 37337 upgrade. Still need ideas for improvements for hauling 15k fifth wheel.
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