There’s nothing cool about rolling coal, also known as coal rolling. To those unfamiliar with the practice, it entails a diesel truck spewing a thick plume of black smoke on unsuspecting cyclists, ...

Black smoke clouds are pouring from social media sites about “rolling coal,” a practice by some diesel pickup truck drivers of intentionally spewing plumes of smoke. Illegal on public roadways but a ...

MIDDLEBURG, Fla. -- A popular trend among diesel truck drivers is getting some heat from motorists and pedestrians. 'Rolling coal' is spreading on social media and truck enthusiasts say it's clouding ...