European motorists are now spending an extra 30 euros per diesel refill, according to fresh analysis that highlights the region as the hardest-hit major economy amid soaring diesel prices. Global diesel costs have climbed to unprecedented levels, driven by tensions in the Strait of Hormuz and supply disruptions at Russian refineries. President Donald Trump has urged Ukraine to halt strikes on Russian refining infrastructure, as high fuel prices are piling political pressure on Republicans ahead of the U.S. midterm elections.
Research from the European non-governmental organization Transport & Environment (T&E), based on European Commission data, reveals that diesel expenses for motorists this year have climbed 40% compared to the start of 2026, with filling a 50-liter tank now roughly 30 euros more expensive. In comparison, gasoline prices have risen 28% over the same period. The group estimates that across Europe, the daily additional cost from diesel since the onset of the conflict has reached 203 million euros. This figure does not yet account for fuel tax relief policies, noting that any tax cuts would ultimately require offsetting through alternative taxation or increased borrowing.
Diesel accounts for more than 40% of Europe's total oil consumption, a share that exceeds all other global regions and is double the level seen in the United States, leaving the continent especially vulnerable to diesel price shocks. Juliette Ager, lead data analyst at T&E, stated, "Our road transport still leans on internal combustion engines, leaving us highly exposed to a commodity with such volatile pricing that we cannot control. Electrification offers greater resilience in times of crisis." The European Union has set a goal to double its electrification rate to 46% by 2040. A Tuesday report from the International Energy Agency indicated that higher electrification levels could reduce global energy import bills by more than $400 billion.
European Commission President Ursula von der Leyen noted last week that since the start of the Iran war, the EU has spent an additional 90 billion euros on imported fossil fuels, "without gaining a single extra molecule of energy supply." Meanwhile, European governments are pressing the EU to introduce further measures to lower retail diesel and gasoline prices. French President Emmanuel Macron has written to von der Leyen, urging a "temporary and exceptional" relaxation of fuel quality standards. According to data from the European Automobile Manufacturers' Association (ACEA), France holds nearly one-fifth of Europe's diesel vehicle fleet. Macron argues that based on surveys from French refineries, loosening these standards could boost European refinery output by 5% to 20%, pointing to similar relaxations implemented during the COVID-19 pandemic. He has also called on the EU to lift restrictions on biodiesel use, allowing distributors to offer B10 fuel (with a 10% biodiesel blend) instead of the current standard B7.
The European Commission has declined to comment on Macron's requests, but spokesperson Anna-Kaisa Itkonen remarked, "The core issue is that as long as we rely on imported fossil fuels, energy prices will remain volatile. We are open to considering other viable measures." Europe's heightened dependence on diesel stems from policy decisions made between the 1990s and 2000s, when governments promoted diesel adoption due to its better fuel efficiency, lower carbon emissions, and cheaper running costs compared to gasoline. This trend began to reverse as the air pollution consequences of diesel became apparent, particularly after the "Dieselgate" scandal revealed that real-world nitrogen oxide emissions from diesel vehicles far exceeded laboratory test results. T&E data, however, shows that a substantial fleet of diesel cars remains on the road, with four in every ten vehicles across Europe running on diesel.
The NGO cites short-term demand-reduction recommendations from the International Energy Agency, including lowering highway speed limits by 10 kilometers per hour and promoting remote work where feasible. T&E also urges the EU to resist lobbying pressure from the European automotive industry and stay committed to its policy goal of phasing out internal combustion engines.
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