Podcast: Daimler Truck's next diesel engine and the urgency of fleet renewal

Daimler Truck's David Carson on the new NOx-compliant Detroit engine and equipment ordering advice for fleet managers.
Feb. 25, 2026

As EPA's new NOx standards creep nearer, Daimler Truck North America (DTNA) this month revealed its next generation of compliant heavy-duty engines. The Detroit-branded Gen 6 diesel engines will be available in 13-, 15-, and 16-L options that meet the looming 35-milligram NOx limit, and will power future Freightliner and Western Star trucks.

In the historic Detroit Manufacturing Plant, FleetOwner's Josh Fisher talks with David Carson, SVP of sales and marketing at DTNA, about the new engine, the state of on-highway and vocational trucking, and Carson's advice for fleets.

To avoid a repeat of the 2022 capacity crunch and manage the rising maintenance costs of aging equipment, Carson advises fleet managers to "order early, order often" rather than waiting for perfect economic certainty.

Catch this episode of The Fleet Lead podcast here or search for The Fleet Lead on your favorite podcast app.

Eric Van Egeren, generated by Shutterstock/AI, traffic_analyzer | 165810175 | Getty Images
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About the Author

Josh Fisher

Editor-in-Chief

Editor-in-Chief Josh Fisher has been with FleetOwner since 2017. He covers everything from modern fleet management to operational efficiency, artificial intelligence, autonomous trucking, alternative fuels and powertrains, regulations, and emerging transportation technology. Based in Maryland, he writes the Lane Shift Ahead column about the changing North American transportation landscape. 

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