Chevy and Ford have both produced 3.0L diesel engines, but they have some noteworthy differences. Here's how the two engines ...

Dimpled pistons might sound strange, but some say they could be the future for diesel power. We've looked at the arguments for and against this wacky idea.

Cummins released details of its 2027 X15 diesel engine, which it says meets EPA 2027 emissions requirements while improving fuel economy — and without adding weight or using more diesel exhaust fluid.

Internal combustion engines are incredibly complicated machines that many of us interact with on a daily basis, but don't completely understand. You get in your car, turn the key or push the start ...

Internal combustion engine blowby, whether gasoline or diesel, occurs when part of the compressed mixture of air and fuel leaks past the piston rings during the compression or power strokes of a ...

Diesel engine manufacturer Cummins, together with Tula Technology, will test out a six-cylinder semi truck diesel engine, outfitted with a cylinder-deactivation system dubbed Dynamic Skip Fire. The ...

A team of engineers at the University of New South Wales (UNSW) in Sydney has figured out a way to run a diesel engine on a mix of diesel and hydrogen, dramatically lowering its emissions. Why do we ...

Cox Powertrain announced its 300-horsepower diesel outboard has achieved U.S. EPA Tier 3 approval for commercial and recreational applications. Cox's CXO300 is a new design built for purpose, meaning ...

Heavy-duty pickups and long-haul trucks rely on torquey diesel engines that are more economical, reliable, durable, and have a more straightforward construction than a comparable unleaded gas engine.