Full-size diesel pickup truck that gets 37 mpg? Achates says yes

Achates opposed-piston two-stroke diesel engine, as it would be packaged for truck installationCould a full-size pickup truck ever get a fuel-economy rating of 37 mpg? California-based Achates Power believes it can, and its novel engine uses a design that dates back to the earliest days of internal combustion to do so. The company announced its two-stroke, opposed-piston diesel engine for pickup trucks in 2014, and revealed a prototype of...