Cummins Inc. said its heavy-duty diesel engines that comply with the Environmental Protection Agency’s 2010 standards will not require NOx aftertreatment, although its medium-duty engines will use ...

Thanks to “heavy-duty truck maintainers” reporting fewer engine-related problems, Caterpillar and Cummins ranked highest in customer satisfaction in the J.D. Power and Associates 2007 Heavy-Duty Truck ...