When you travel across Europe pay attention where the fuel is the cheapest. The prices vary in different countries (although they are the same in the whole country). The differences are not striking but still it is better to take fuel in Poland than e.g. in Germany. The table below presents the price per one liter in various European countries
Price per liter on a gas station
the Czech Republic
(no gas stations at all)
A gas station next to a big garage.
The price is lower by about EUR 0.20 per liter.