Thoughts on how to buy gas?
Many Italian gas stations have a 'Servito' lane, where you pay a hefty premium for an attendant to fill up for you. It seems like a tourist trap, as they are often the most convenient way into the fuel aisles. No other country in Europe has this.

In general in Europe: try to plan fuel stops on surface roads or in cities, not the autostrada / motorways, as these are substantially more expensive.
Also: become acquainted with the Italian names for gasoline, as 'gasoilio' means diesel fuel. Gasoline is called 'super' or 'benzina' or 'senza PB' (unleaded). There is a new EU-mandated system of fuel naming, gasoline-powered cars use E5 or E10 fuel. (5% or 10% ethanol). Do not fill up with E85, which is 85% ethanol, very few cars can drive on that. Petrol / gasoline is usually a green nozzle, while diesel is usually black.
This is E5 fuel, suitable for basically any petrol/gasoline car. Pretty much all cars can also drive on E10 without problems.
