A new fuel-blending method appears to make diesel engines cleaner and more efficient at the same time. Early results point to surprising emission cuts and promising real-world potential.

One of the many things we love about running a diesel engine is how long it will run. You can pack in a lot of mileage without needing major repair - as long as you take care of the motor and keep ...

Diesel engines, although robust and efficient, release harmful atmospheric pollutants such as nitrogen oxides and fine ...

INDIANAPOLIS—While clean energy is the future, diesel will primarily power trucking’s near future. But as more U.S. fleets face a patchwork of regulations nationwide, planning will be imperative. “The ...