There in Italy the regular is ~94 Octane (1,46€/Liter = 1,62US$/Liter = 5,49US$/US Gallon, italian taxes included) and premium is 100 Octane (1,65€/Liter = 1.84 US$/Liter = 6,96 US$/US Gallon, italian taxes included) US Premium (93 Octane) is 0,60 US$/Liter (a US Gallon is 3.7854 liters)= 0,54€/Liter (american taxes…