These values mean that filling an average 55-liter tank with gasoline costs 88 euros, ten more than a year ago, compared to 93 for diesel, 24 more. However, compared to the beginning of the summer, the Spanish paid during the last week about 19 euros less when refueling gasoline, and almost ten less in the case of diesel. The most expensive summer in historyIn this sense, and despite the fact that fuels accumulate several weeks of falls, current prices have been the most expensive in history for a month of August, a period in which there is usually a marked increase in prices. mobility on Spanish roads due to summer vacations. Until now, the highest levels were recorded in 2012, ten years ago, when a liter of gasoline cost 1,522 euros, and diesel 1,445, 5% and 15 % less, respectively, than the current values. Filed under: Fuel prices European Union Oil Traffic Portugal