Four projects have been selected for the three-to-four-year DOE grant to develop and demonstrate technologies that increase the efficiency of engines and powertrain systems for future highway transportation vehicles.

DOE said the four projects, located in Michigan, Massachusetts, and Wisconsin, will focus on new technologies that achieve breakthrough thermal efficiencies while meeting federal emission standards for passenger vehicles as well as commercial vehicles, including long-haul tractor trailers.

The new technologies for engines and powertrains will help automakers and truck engine makers achieve higher efficiencies.