So how do you convert octane recommendations on your gas flap to the formula for octane ratings on the pump? Aren't they totally different systems of measurement/equations?
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“There are two measurements: research octane (RON), and motor octane (MON). The octane rating that you see on the pump is an average of these two different ratings. The measurements are made on specially designed ‘knock’ engines to determine the ratings.”
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The good news is that at its most basic level, regular gas is regular gas, and 91 RON in Germany is equivalent to 87 AKI in the United States. Premium is the same, and while premium gasoline is often called “super” by some retailers, 95 RON in Germany is equivalent to 91 AKI in the USA and Canada.
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So is AKI (Anti-Knock Index) on your flap the same as the RON+MON/2 on the pump?