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					Originally Posted by  SKOOSH1970
					 
				 
				Wow, really surprised you guys don't add octane booster if all you can buy is 91 RON fuel..... I used to run high powered Subaru impreza's years ago..... even added octane booster to 98 Ron fuel then to avoid detonation which still used to spike occasionally on the knocklink..............!!! 
 
Just goes to show how misguided drivers are generally around the world I guess...( by car manufacturers ) 
			
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Remember, when we in the US are saying 93 octane, it is 93 AKI = 98 RON.  91 = 95 RON.