Soot. The byproduct of combustion. Every engine is going to have a little of it, but it's a very big deal for diesel engines. So. How much soot is too much? Blackstone Joe breaks everything you need to know about soot, how it will affect an engine, and what Blackstone Laboratories can tell you about the soot levels in your latest sample.

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Host: Joe Adams 

Producer: Joshua Straley