The whole business went up in smoke. A group of auto-parts dealers have been charged with operating a multimillion-dollar smuggling ring to sell banned devices that let drivers switch off the ...

The practice known as “rolling coal” occurs when a diesel truck is modified so that it can intentionally blast black smoke in abundance, and its origins can be traced back to truck pulling or ...

An Illinois state representative proposes a $5,000 fine for any drivers who tamper with the EPA-mandated emissions equipment on their diesel-engined vehicles so they can do what's called "Rolling ...

New Jersey Governor Chris Christie has signed a law making rolling coal illegal in the state. The bill was introduced less than a year ago after a pickup belched soot on a State Assemblyman's ...

"Rolling coal" - when drivers blow thick exhaust clouds from the tailpipe of a truck - may be obnoxious, but it isn't illegal in most US states. Only a handful of states including Maine ...