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FedEx Collab Drives Renewable Natural Gas Engines Forward

PACCAR, a global truck manufacturer, announced it will work with power solutions provider Cummins Inc. to offer the new Cummins X15N natural gas engine in Kenworth and Peterbilt trucks.

The Cummins X15N is the first natural gas engine to be specifically designed for heavy-duty truck applications with up to 500 horsepower output.

“We believe we can help our customers achieve their goals by lowering the barriers to fleet adoption of sustainable power solutions by using proven engine technology and leveraging existing infrastructure, and giving them affordable options for their business goals,” said John Rich, PACCAR chief technology officer.

Together, with several customers including FedEx Freight and Knight-Swift, PACCAR and Cummins will demonstrate the ability to achieve low-to-zero carbon emissions for long-haul transport using internal combustion engine technology and operating on renewable natural gas (RNG).

“The X15N is essential to our commitment to help customers reach net-zero greenhouse gas emissions and to improve NOx,” said Srikanth Padmanabhan, vice president and president, Cummins Engine Business, referring to oxides of nitrogen, especially as atmospheric pollutants. “Importantly for the customer, the X15N will reduce the cost of adopting low emissions technologies for their fleet and gives them the confidence to do so, built on the strong foundation of more than 30 years of experience with natural gas.”

When operating on RNG, also known as biomethane, the X15N engine will be able to achieve major reductions in the lifecycle greenhouse gas emissions of Peterbilt and Kenworth trucks, according to the companies. This can range from a 90 percent reduction to carbon neutral, or even carbon negative, depending on the bio-source and waste feedstock used to produce the fuel, the noted.

The new X15N is capable of lower NOx levels than the 2024 Environmental Protection Agency (EPA) and California Air Resources Board (CARB) standards, according to Cummins. In addition, the 1,850 foot pounds of peak torque output provided by the X15N provides optimum performance when paired with Eaton Cummins Automated Transmission Technologies HD and XD Transmission, the company added.