Achates Power’s cleaner, heavy-duty diesel engine it developed in a project funded by the California Air Resources Board and several partners has entered fleet service with Walmart in a Peterbilt 579 ...

It may end up being one of the most innovative engines passed over for mass production. The Achates Power 10.6-liter opposed-piston diesel engine made headlines recently for becoming the first oil ...

Opposed-piston engine technology has been touted as a possible alternative to conventional engine designs for years. Now, opposed-piston engine developer Achates Power reports that its 10.6L ...

Diesel is dead? Not quite yet. Achates announced Friday that it has produced a heavy-duty, two-stroke diesel engine with near-zero emissions that costs less than a conventional engine and is expected ...

A demonstration project is working on a radically different commercial diesel engine that emits much less, burns less fuel and produces more power. A California project is working to produce a ...

NOx emissions from diesel vehicles, which have proven to be much higher in the real world than predicted in laboratory conditions, have even been blamed for tens of thousands of premature deaths. But ...