PACCAR has patented a method to evaluate Diesel Exhaust Fluid (DEF) quality in emissions aftertreatment systems. By analyzing NOx conversion efficiency in SCR units, the system adjusts DEF dosing to ...

Peterbilt Motors Co. on Thursday, June 10, announced delivery of the first 2010 Environmental Protection Agency-certified Paccar MX engine. A Peterbilt Model 386 equipped with the first production ...