[dahfizz]

The US also has cheaper 87 octane gas. All gas in Europe is the US equivalent of "premium" 93+ octane.

[glogla]

Isn't it just different numbering scheme? https://en.wikipedia.org/wiki/Octane_rating

[dahfizz]

Go to the table and sort by (R+M)/2 . All European fuels have a value of 90+. The vast majority of USA fuel is at 87.