Volvo's D13 engine cuts NOx emissions by 80%, aligning with 2027 EPA standards for cleaner, efficient heavy-duty truck ...

Several of the world's largest truck makers are switching away from diesel. The replacement comes in two forms, and the race ...

Mack Trucks are all over the roads and you might be wondering what powers them under the hood. There are a number of engines, ...

Purdue University’s Greg Shaver doesn’t believe there should be a trade-off between protecting the air we breathe and achieving better engine efficiency of large vehicles on the road. Shaver, a ...

Can stuck piston rings be restored without teardown? A 500,000-mile Valvoline engine test shows how deposit removal may ...

Modern cruise ships can have anywhere from four to eight massive diesel engines, although some also run LNG-capable engines ...

A half-million miles is a staggering number. At 15,000 miles a year, it would take more than 33 years of driving to get there ...

The new hydrogen engine, while still in development, has thermal efficiencies above 60 percent. In comparison, diesel engines ...

Performance, towing, fuel economy, and more details about the Chevy and GMC models with the first-generation Duramax inline-six. The first-generation 3.0-liter LM2 Duramax diesel engine was a GM ...