Thread: 800GS owners?
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Old 02-07-2009, 10:11 PM   #17
The Griz
North Forest Rider
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Joined: Nov 2008
Location: Minnesota
Oddometer: 3,787
There's a sticker on the gas cap that says "minimum 89 AKI (Anti-Knock Index). That settles it. Medium grade. Anti-Knock Index (AKI), Road Octane Number (RdON), Pump Octane Number (PON), and (R+M)/2 are all the same measurement.
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