A diesel engine is simultaneously incredibly simple and incredibly violent, using compression as a means of ignition. This is because of the properties of diesel fuel: Namely, diesel is less volatile ...

The demand for alternative fuels has never been higher. As the search for sustainable fuels continues to ramp up, one question that often comes up is whether Cummins diesel engines can truly run on ...

We all know diesel engines produce Earth-moving torque to outclass gas engines in pulling power and heavy-duty workloads. We also know that diesels could outlive a similar gas engine, given proper ...

If you drive a diesel car or truck, you've probably bumped into the term biodiesel. Like most owners, you probably first saw the term biodiesel on the pump (as a mix for ultra-low-sulfur diesel) – and ...

This story appears in the June 29 print edition of Transport Topics. Over-the-highway trucks and buses with 2007 engine technology ran nearly 90% cleaner than required by federal emission standards ...