Watch: How Sulfur Can Destroy Your Truck's Diesel Engine

Watch: How Sulfur Can Destroy Your Truck’s Diesel Engine

Diesel fuel contains sulfur. It comes from the original crude oil source and, while sulfur is mostly removed in the refining process, you can still find it in the finished product. This is a problem, because after combustion in the engine, sulfur forms particulates that are a primary contributor to air pollution and the cause of harmful corrosion in the engine.

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