We turned to Global Petrol Prices for insights into key trends and projections. Fuel prices significantly affect the total cost of ownership for heavy-duty vehicles, making accurate forecasts essential for road transport operators and businesses. We asked Neven Valev, a leading expert at Global Petrol Prices (GPP), to give us an overview of the 2025 outlook and the factors driving diesel price variations across countries. Why do diesel price changes vary by country? GPP: Two main factors drive diesel price changes across countries: oil prices and government policies. Essentially, all countries face similar crude oil price changes. But their diesel prices respond in very different ways. For example, a 10% change in oil prices causes a 7% change in diesel prices in the US, while in Germany, it leads to a 3% change. (....)