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Trump speculates on diesel fuel export ban as high prices ripple across US economy

<name>Vidya Mani, Associate Professor, Darden School of Business; Research Associate Professor, Biocomplexity Institute, University of Virginia; Cornell University</name> <foaf:homepage rdf:resource="https://theconversation.com/profiles/vidya-mani-2599780"/>· 23 septembre 2026

Demand for rail freight shipping is up, as trucking becomes more expensive. Both use diesel fuel, but trains are more efficient at carrying heavy loads long distances. Scott Olson/Getty Images Diesel fuel powers long-distance trucks, freight locomotives, boats and barges, farm machinery, constructi…

Résumé

Diesel's vital role

Diesel fuel is a key energy source for heavy machinery, transportation, and backup power systems.

It powers long-distance trucks, freight trains, boats, farm equipment, construction machines, and generators.

Diesel engines are efficient for hauling heavy loads and refueling quickly, making them essential for industries like agriculture, mining, and logistics.

On September 14, 2026, the U.S.

average diesel price reached $6.52 per gallon, a 74% increase from the same week in 2025.

This spike reflects broader supply chain disruptions affecting diesel production and distribution across the globe.

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