The soot and chemicals in diesel exhaust burn the eyes, skin, nose, throat, and lungs. It can worsen asthma and cause nausea.

Yahoo Racing is powered by Motorsport Network, providing expert reporting, analysis, and insider access across the world’s top racing series. It's called "rolling coal"--and drivers of hybrid and ...

BOISE — “Rolling coal” might be illegal in the Gem State soon, if a bill introduced Wednesday becomes law. Rolling coal is the colloquial name for modifying the engine or exhaust of a diesel truck so ...