Knight-Swift Tests Cummins X15N RNG Engine to Reduce Emissions

Knight-Swift is testing the Cummins X15N natural gas engine with renewable natural gas (RNG) to reduce fleet emissions by 50% by 2035. This initiative aligns with the push for more sustainable trucking solutions in the industry.

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Published Jun 9, 2026

Knight-Swift Tests Cummins X15N RNG Engine to Reduce Emissions

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Knight-Swift is conducting tests on the Cummins X15N engine powered by renewable natural gas (RNG), aiming for a 50% reduction in CO2 emissions by 2035. Cummins plans to launch the X15N next year, promoting it as a solution that matches diesel performance while significantly lowering emissions.

Field testing with Knight-Swift will continue through 2024. The collaboration reflects the industry's shift towards sustainable technologies, which may influence trucking operations and regulatory frameworks. The successful implementation of RNG could enhance economic benefits for truckers and bolster environmental goals.

Knight-Swift Tests Cummins X15N RNG Engine to Reduce Emissions

Knight-Swift Tests Cummins X15N RNG Engine to Reduce Emissions

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