Statistics Finland released its Consumer Price Index data for December 2025, showing that average prices of diesel and gasoline rose compared with the previous month. The taxed average price of diesel was 1.70 euros per litre, while gasoline 95 was 1.80 euros per litre. Gasoline 98 also averaged 1.80 euros per litre, and light fuel oil was 1.20 euros per litre. Despite the monthly increase, year‑on‑Year changes were negative: diesel fell 1.7 %, gasoline 95 down 0.6 %, gasoline 98 down 0.5 %, and light fuel oil dropped 5.4 %. The largest monthly rise was recorded for light fuel oil (+6.2 %), with gasoline 98 showing the smallest (+1.7 %).
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