NACFE: Diesel hits 11.5 mpg while Tesla Semi runs 460 miles in real-world test
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NASHVILLE, Tenn. — Diesel trucks reached 11. 5 miles per gallon and a Tesla Semi ran 460 miles on a single charge during NACFE’s 18-day “Run on Less – Messy Middle” demonstration, the most detailed real-world powertrain study yet released at TMC 2026. The North American Council for Freight Efficiency’s 277-page operations report analyzed 14 Class 8 tractors across diesel, compressed natural gas, battery-electric and hydrogen fuel-cell powertrains.
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"NACFE: Diesel hits 11.5 mpg while Tesla Semi runs 460 miles in real-world test"
https://www.freightwaves.com/news/nacfe-run-on-less-diesel-11-5-mpg-tesla-semi