Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant ...

These two major engine manufacturers are aligning with relaxed EPA guidance related to sudden derates due to DEF/emissions ...

Paccar will roll out updated software for Kenworth and Peterbilt trucks equipped with MX-11 and MX-13 engines to reflect ...

Cummins and PACCAR are updating diesel engine software to give operators more time to address certain DEF-related issues ...