| http://www.w3.org/ns/prov#value | - In most countries, including all of those of Australia and Europe the headline octane rating shown on the pump is the RON, but in Canada, the United States and some other countries, like Brazil[4], the headline number is the average of the RON and the MON, called the Anti-Knock Index (AKI, and often written on pumps as (R+M)/2).
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