>>>>What are your fuel costs over there? Here in Vancouver, 89 octane gasoline is about C$1.40 / litre.
>>>
>>>95 octane between 1.60 and 1.70 € depending on 5% (more expensive) and 10% (less expensive)
>>>part of ethanol (worries with some older cars with higher ethanol%). Diesel ~20€ cents cheaper than
>>>gasoline, but with much higher yearly car taxes - that is coming from this years easter hike in Frankfurt.
>>
>>Hmm, it looks like octane "ratings" vary between Europe and NA as well: http://retail.petro-canada.ca/en/independent/2069.aspx
>>Maybe what you call 95 octane ( RON? ) is what we call 91 octane ( ( R + M ) / 2 ) ?
>>I was slightly off with the earlier quote - C$1.40 is actually for 87 octane. 89 is ~C$1.47, 91 ~C$1.55. Diesel is ~C$1.48.
>
>our "super premium" is 102, 98 (high grade) also sometimes available,
>95 (still called premium) is the most common gas sold today
>and 92 has almost vanished (called normal, but today often sold at premium price, so less demand)
>so RON seems to fit those steps best if considered to be ceiling(RON).

Still sounds like your fuel octane is better than ours. I haven't seen anything over 91 octane at self-serve pumps for some time, although a few years back ISTR seeing 94 octane available at some stations.

1€ is currently about C$1.30. If we compare cheapest widely available fuel, your cost premium is

1.3 * ( 1.60 / 1.40 ), or about 49%.

For Viv, 1£ is currently about C$1.59. His premium:

1.59 * ( 1.40 / 1.40 ), or about 59%.

So, you guys pay 50 - 60% more for fuel. And, I believe Vancouver has amongst the highest prices in North America, so your cost premium compared to average North American is even higher.