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 ...

A well-running and adequately maintained diesel engine should produce no visible smoke from the tailpipe. Modern diesel engines equipped with common-rail direct-injection technology have unlocked more ...

A blast of thick, black smoke dropped onto a group of cyclists riding swiftly along a Waller County road on a sunny late September day left a heap of damaged bikes and broken bones. A 16-year-old ...

Starting in 2026, diesel owners and repair shops will no longer run the risk of federal criminal chargers for performing two common engine mods.

Proving the high-performance diesel drag racing doesn't require crude machines belching black smoke, the high-tech Banks Sidewinder Type-D drag truck has set a new world-record for fastest and ...