It's standard for older diesel engines to emit black smoke under full load, which occurs during "turbo lag." As the diesel engine waits for the turbo to spool, the machine will blow thicker black ...

Mainstream diesel performance hit a home run when Dodge introduced the Cummins-powered Dodge Ram in 1989. In stock trim, the trucks were reliable yet underpowered, but it wasn’t long before ...

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 ...

We’ve all heard of the smoke test, and we know that it’s the lowest possible bar for performance of an electronic device. If it doesn’t burst into flames when power is applied, you’re good to go for ...

Colorado is riding hard on diesel truck drivers who “roll coal,” the politically charged display of power on the roads that has doused other vehicles, such as environmentally friendly Priuses, and ...