Detroit’s sixth-gen lineup features updated DD13, DD15, and DD16 engines that add an SCR pre-treatment of exhaust gas prior to the principle aftertreatment system. The goal is to meet EPA's 2027 ...

A lot has changed in seven years, when Daimler Truck North America (DTNA) began working on its sixth-generation Detroit engine, designed to meet the EPA27 ultra-low NOx limit of 0.035 grams per hp/hr.

Daimler's new Gen 6 diesel engines are here -- but the OEM says fleets and technicians will find their overall design and packaging strikingly familiar. At its Detroit powertrain manufacturing campus ...

Manufacturers' required DEF derates will soon be less severe. Current equipment may enter limp mode and slow to 5 mph, or stop altogether until a DEF fault is cleared. The EPA's new guidance for ...