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Diesel Smoke - Blue, Black, and White Smoke, and What They Mean

Generally, diesel engines only emit three types of smoke.

The types emitted, are typically, black, blue, and white smoke. We are going to talk about black smoke first.
Black Smoke? What causes it?
Black Smoke is always caused by... click here to go to the black diesel engine smoke page for more information.
White Smoke
Ok, so it's 10 degrees outside, you go out and crank up your diesel powered vehicle, and it takes a little longer to start, and when it starts...click here to go to the white diesel smoke page for more information.
Blue Smoke/Oil Smoke
Blue smoke out of the other colors you may see in your diesel engine, is the worst color. Click here to go to the blue diesel engine smoke or oil smoke page and find out why.
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