Thread: Octane Change
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Old 02-18-2012, 09:53 PM
Jeff d Jeff d is offline
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Join Date: May 2010
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It says 93 Research Octane (RON) though. RON is more common worldwide but gas pumps in the US are labeled with (R+M)/S (AKA Anti Knock Index). 93 RON = 88 (R+M)/S. Look at the buttons on the pump next time you get gas. They will say (R+M)/S in the fine print under the "87", "89", etc. So, 93 RON = "Regular Unleaded" in most US regions.

Last edited by Jeff d; 02-18-2012 at 09:57 PM.
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