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Generally, octane ratings are higher in Europe than they are in North America and most other parts of the world. This is especially true when comparing the lowest available octane level in each country. In many parts of Europe, 95 RON (90-91 AKI) is the minimum available standard, with 97/98 RON being higher specification (being called Super Unleaded).

In Germany, big suppliers like Shell or Aral offer 100 RON gasoline (Shell V-Power, Aral Ultimate) at almost every gas station.

The United Kingdom also offers Shell V-Power, but in a 99 RON octane rating, and Tesco fuel stations also supply the Greenergy produced 99 RON "Tesco 99".

In Australia, "regular" unleaded fuel is 91 RON, "premium" unleaded with 95 RON is widely available, and 98 RON fuel is also reasonably common. Shell used to sell 100 RON petrol from a small number of service stations, most of which are located in capital cities (stopped in August 2008).

In Malaysia, the "regular" unleaded fuel is 95 RON, "premium" fuel is rated at 97 RON, and Shell's V-Power at 97 RON.

In the Netherlands Shell V-Power is a 97 RON (labelled as 95 due to the legalities of only using 95 or 98 labelling), whereas in neighbouring Germany Shell V-Power consists of the regular 100 RON fuel.

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