Diesel prices had already crossed into uncharted territory before the White House intervened. The national average topped $6 a gallon in September for the first time, amid supply disruptions tied to the wars in Ukraine and Iran and constrained refining capacity. Rapidan Energy president Bob McNally estimated Americans were spending roughly $700 million more each day on gasoline and diesel than a year earlier.¹

Against that backdrop, Trump signed an executive order Monday evening allowing truckers and farmers to use red-dyed diesel on public roads temporarily. The fuel is normally limited to farm equipment, construction machinery and other off-road uses because it avoids the 24.4-cent-per-gallon federal tax charged on highway diesel. Using it in road vehicles has ordinarily been illegal and can trigger tax-evasion penalties.¹

The administration’s argument is blunt: remove the tax burden now, and freight operators and producers get breathing room quickly. The White House said truckers could save more than $100 per fill-up. It also directed the Treasury secretary, consulting the Department of War, to defer collection of the federal highway-diesel excise tax through the end of 2026, without interest or penalties, while exploring whether the deferred liability can be eliminated altogether.¹

That approach goes further than simply tolerating a temporary workaround. Several states had already loosened red-diesel restrictions as prices climbed, but Trump’s order makes a federal wager that immediate savings outweigh the usual enforcement and revenue concerns. In parallel, the Group of Seven agreed to release 100 million barrels from diesel and crude reserves after Trump pressed allies and floated a possible ban on U.S. fuel exports.¹