Tag Archives: hybrid locomotive

Union Pacific Railroad (NYSE: UNP) today unveiled an experimental locomotive that will test three emissions-reducing technologies – exhaust gas recirculation, diesel oxidation catalysts and diesel particulate filters. While automotive enthusiasts might snicker about how far behind the heavy-duty diesel engine industry is lagging what are now virtually emissions free automobiles, the new locomotive is a significant step toward meeting EPA Tier 4 emission standards that are finally addressing large commercial vehicles. Continue reading →