Detroit's DD13, DD15, and DD16 engines get a pre-SCR boost, 3% fuel-efficiency gains, and familiar service intervals as Daimler prepares for trucking's next emissions era.

A lot has changed in seven years, when Daimler Truck North America (DTNA) began working on its sixth-generation Detroit ...

KTIV rode along on one of the buses that the school district officials hope to incorporate into regular routes in the coming days.

Iowa House lawmakers heard public comments on and voted to advance bills Tuesday that would create regulations for shellfish farms, prohibit lawsuits related to greenhouse gas emissions from ...

The EPA is escalating its response to consumer complaints regarding DEF system failures, announcing a new investigation aimed ...

Breaking news, the EPA is forcing engine makers to reveal the truth behind their DEF systems for repairs, warranty claims to see if they have improved. They are also looking at if they even need to ...

The Trump administration is demanding warranty and failure data from top manufacturers in an effort to end truck engine shutdowns. The post EPA targets truck engine makers on DEF system failures ...

The Environmental Protection Agency is requiring 14 major diesel engine manufacturers to provide detailed information about diesel exhaust fluid system failures that have affected farmers and truckers ...

The data collected will allow EPA to independently evaluate ongoing system failures. As of Feb. 2, engine manufacturers have 30 days to provide EPA with data on model years 2016, 2019 and 2023 ...