US$1.53/liter (US$5.78 per US gallon) of the cheaper one, and about $7.10/gallon for the high-octane (98) variety. And that's because we have the 4th largest oil company in the western hemisphere.
I don't drive but I know the prices here...
95 octane 10,94HRK/L 1.45€
95 octane 10,99HRK/L 1.46€ CLASS (cleaner than usual 95 or smth)
98 octane 11,36HRK/L 1.51€ CLASS (Dunno why, there's no "usual" 98)
1.85 € for 1 litre of normal unleaded fuel. And thats where I refuel, out of the city, inside its around 1.95 € per litre.
Premium starts from 2 € per litre if you are lucky... Yes, Italy is INSANE