scott.lambert
New member
Yeah, European AKI numbers are generally 4-5 higher than the equivalent US Pump Octane number.
Pretty thorough treatment here:
http://en.wikipedia.org/wiki/Octane_rating
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What do you do when
- Thread starter nelliott
- Start date
Yeah, European AKI numbers are generally 4-5 higher than the equivalent US Pump Octane number.
Pretty thorough treatment here:
http://en.wikipedia.org/wiki/Octane_rating
guenner
Member
In Germany - and in my owner's manual for my '89 R100GS - the fuel grade is specifedi as 91 ROZ (or RON) in the US. Regular unleaded in Germany is rated as 91 ROZ and 82.5 MOZ (or MON in the US).
In the US the number stated on at the pump is AKI = (RON + MON) / 2 which makes regular unleaded in Germany comparable to 86.75 AKI.
That makes me feel better when I occasionally have to fill up with '85'.
/Guenther
de.wikipedia.org/wiki/Oktanzahl
en.wikipedia.org/wiki/Octane_rating
[Edit]Scott, you were at the same path at the same time.
In the US the number stated on at the pump is AKI = (RON + MON) / 2 which makes regular unleaded in Germany comparable to 86.75 AKI.
That makes me feel better when I occasionally have to fill up with '85'.
/Guenther
de.wikipedia.org/wiki/Oktanzahl
en.wikipedia.org/wiki/Octane_rating
[Edit]Scott, you were at the same path at the same time.
Tewster2
New member
On a recent trip in the southwest I could only get 85 octane fuel for my 1200 GS. I didn't notice any difference in the perfomance of the bike. I don't ride hard or fast so all was well. I did however notice a hugh difference in the taste of beer after it got hot on the way to Monument Valley 
If I am heading off on a road trip, I usually throw a bottle of octane booster in the side case. I don't ever rember seeing anything less than 87 octane in Canada myself, but in places like Nebraska I have seen 85 octane. Anything less than 89 octane, I give it a slug or two from the bottle and I have never noticed any knocking or pinging. My bike is 2100 R1200GS; minimum requirement is 89 but I put in 91 if it is available.
