What Fuel Octane Level in your 1M?

[eeghie]

Originally Posted by Artemis

As we noticed, the fuel management of your 1M (range) is clearly more efficient than on my 1M (± 50 km difference per fuel tank). If it's not driver related (shifting/revving/PTTM), tire quality or past use (the car is used for lots of short distance city driving), then the credit may belong to the tune of your 1M and maybe also the permanent 102 RON treatment of your engine since delivery. Or forget about all of that: it's simply because you're a far more better driver than me.

I fuel the highest available at the visited fuel station (at least 98 RON). Easy to spot: just check for the pump with the most expensive fuel...

Austria: reasonable prices (but the cheapest can be found in Luxembourg):

Italy: the most expensive fuel rates of Europe:

The gas station attendance's explanation is a bad as the V Power composition: around these parts it's RON95 just as the Shell Regular ...?

[DSCPLN]

just updated the main thread with:

Quick Reference Octane Rating Guide:

102 RON (EU) = 98 AKI (US) - Racing Grade Fuel
98 RON (EU) = 93 AKI (US)
95 RON (EU) = 91 AKI (US)
92 RON (EU) = 87 AKI (US)

per http://en.wikipedia.org/wiki/Octane_rating

[Snertz]

50/50 93 and E85, so 99AKI/102RON

[vito747]

I use 98 octanes shell V-power 95% of the time here in spain

[DrShimmy]

98 RON only

[Hogsmith]

98 RON or 102 RON when available

[SpencerMH]

60/40 93/e85 ethanol, good stuff with a tune.