July 27, 2026 2:56 pm, EDT Mack launches a revival of Anthem in June 2025. (Mack Trucks) key takeaways: Volvo Trucks North America and Mack Trucks said July 27 that they have begun incorporating the revised EPA DEF induction software into new trucks produced starting in May. Following EPA guidance issued in August 2025, the
July 13, 2026 9:06 pm, EDT The cuts to DEF derivatives are the latest move by the Trump administration to roll back Biden-era emissions rules. (Ebliss/Getty Images) key takeaways: The EPA is proposing to eliminate DEF-related engine derailments and replace them with dashboard alerts, a move aimed at reducing downtime and keeping trucks running. The
A Packer MX-13 engine. The parent company of Kenworth and Peterbilt will introduce updated software for vehicles equipped with MX-11 and MX-13 engines. (Packer Inc.) July 7, 2026 5:50 pm, EDT key takeaways: The EPA guidance increases the final spur speed by 5 mph to 25 mph and extends the timeline for addressing emissions system
The fifth generation Freightliner Cascadia. (Daimler Trucks North America) June 23, 2026 1:45 pm, EDT key takeaways: Daimler Truck North America began rolling out the optional DEF induction software update to approximately 330,000 in-service Detroit-powered vehicles in February. The revised parameters increase the final-spur speed limit by 5 mph to 25 mph and increase time