Are you saying these governments are also corrupt? It should be a mere 2 to 3% different in pricing by rights! A ron number is usually +4 or +6 to the Ron number.
The octane rating of gasoline is measured in a test engine and is defined by comparison with the mixture of 2,2,4-trimethylpentane iso-octane and that would have the same anti-knocking capability as the fuel under test.
But try using it with the 2004 car….
Refer to the table above for the full results.
It surprised me too because I thought Ron 97 would give higher mileage.
They are only a measure of the fuel's tendency to burn in a controlled manner, rather than exploding in an uncontrolled manner.