Octane RON vs AKI
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Joined: Nov 2007
Posts: 87
From: UAE
Octane RON vs AKI
I just realized something and thought maybe it can help others too. (you prolly already know all this)
I was reading the mpg and octane and engine-knock threads and it wasn't making any sense. Well, it turns out that in North America an octane reading called AKI is used, while in EU, OZ and rest of the world it is RON.
Apparently,
92 RON = 87-88 AKI
95 RON = 90-91 AKI
98 RON = 93-94 AKI
Wikipedia: "In most countries (including all of Europe and Australia) the "headline" octane that would be shown on the pump is the RON, but in the United States, Canada and some other countries the headline number is the average of the RON and the MON, sometimes called the Anti-Knock Index (AKI), Road Octane Number (RdON), Pump Octane Number (PON), or (R+M)/2. Because of the 8 to 10 point difference noted above, this means that the octane in the United States will be about 4 to 5 points lower than the same fuel elsewhere: 87 octane fuel, the "regular" gasoline in the US and Canada, would be 91-92 in Europe. However most European pumps deliver 95 (RON) as "regular", equivalent to 90-91 US (R+M)/2, and even deliver 98 (RON) or 100 (RON)."
I was reading the mpg and octane and engine-knock threads and it wasn't making any sense. Well, it turns out that in North America an octane reading called AKI is used, while in EU, OZ and rest of the world it is RON.
Apparently,
92 RON = 87-88 AKI
95 RON = 90-91 AKI
98 RON = 93-94 AKI
Wikipedia: "In most countries (including all of Europe and Australia) the "headline" octane that would be shown on the pump is the RON, but in the United States, Canada and some other countries the headline number is the average of the RON and the MON, sometimes called the Anti-Knock Index (AKI), Road Octane Number (RdON), Pump Octane Number (PON), or (R+M)/2. Because of the 8 to 10 point difference noted above, this means that the octane in the United States will be about 4 to 5 points lower than the same fuel elsewhere: 87 octane fuel, the "regular" gasoline in the US and Canada, would be 91-92 in Europe. However most European pumps deliver 95 (RON) as "regular", equivalent to 90-91 US (R+M)/2, and even deliver 98 (RON) or 100 (RON)."
Member
Joined: Jul 2005
Posts: 695
From: RGL M.E.
I just realized something and thought maybe it can help others too. (you prolly already know all this)
I was reading the mpg and octane and engine-knock threads and it wasn't making any sense. Well, it turns out that in North America an octane reading called AKI is used, while in EU, OZ and rest of the world it is RON.
Apparently,
92 RON = 87-88 AKI
95 RON = 90-91 AKI
98 RON = 93-94 AKI
Wikipedia: "In most countries (including all of Europe and Australia) the "headline" octane that would be shown on the pump is the RON, but in the United States, Canada and some other countries the headline number is the average of the RON and the MON, sometimes called the Anti-Knock Index (AKI), Road Octane Number (RdON), Pump Octane Number (PON), or (R+M)/2. Because of the 8 to 10 point difference noted above, this means that the octane in the United States will be about 4 to 5 points lower than the same fuel elsewhere: 87 octane fuel, the "regular" gasoline in the US and Canada, would be 91-92 in Europe. However most European pumps deliver 95 (RON) as "regular", equivalent to 90-91 US (R+M)/2, and even deliver 98 (RON) or 100 (RON)."
I was reading the mpg and octane and engine-knock threads and it wasn't making any sense. Well, it turns out that in North America an octane reading called AKI is used, while in EU, OZ and rest of the world it is RON.
Apparently,
92 RON = 87-88 AKI
95 RON = 90-91 AKI
98 RON = 93-94 AKI
Wikipedia: "In most countries (including all of Europe and Australia) the "headline" octane that would be shown on the pump is the RON, but in the United States, Canada and some other countries the headline number is the average of the RON and the MON, sometimes called the Anti-Knock Index (AKI), Road Octane Number (RdON), Pump Octane Number (PON), or (R+M)/2. Because of the 8 to 10 point difference noted above, this means that the octane in the United States will be about 4 to 5 points lower than the same fuel elsewhere: 87 octane fuel, the "regular" gasoline in the US and Canada, would be 91-92 in Europe. However most European pumps deliver 95 (RON) as "regular", equivalent to 90-91 US (R+M)/2, and even deliver 98 (RON) or 100 (RON)."
Wat RON is Mumtaz ( premium ) and wat RON is Jayid (regular)???
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