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 ...

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 ...

The L5P Duramax diesel V8 is what powers heavy-duty work trucks like the 2025 Chevy Silverado 2500 HD and is an amazing powerhouse. It didn't exactly start off that way back in 1984 when GM first ...

Here’s the tricky part: a diesel fuel-related issue rarely reveals itself as clearly as other engine problems, making the ...

Drivers tend to ignore the exhaust pipe until something dramatic happens. A sudden change in exhaust smoke forces attention fast. Color, thickness, and even smell can signal hidden engine problems ...