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If I'm willing to pay what I paid to go to wtotech then I'm not going to question some one who wrote the text books that taught us that
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Think about it next itme your at a pull you don't see fire coming out the stack when the truck's sitting there idling do you? But with some trucks as soon as it's spooled you can see a faint glimer of fire at the base of the stack. Also here's something to try if your brave enough take a lighter and try lighting the white smoke it will not burn then try lighting the black smoke and stand back because you'll catch fire if your not careful. Henice the black smoke is raw fuel. I'm done with thread cause If I look at it I will post something mean and a mod will remove me from the site which I don't want to happen.