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Old 08-05-2002, 08:07 PM
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Generally, gasoline octane is given in relation with two methods of testing. RON and MON
RON: means Research Octane number
MON: Means Motor Octane number.
MON is always higher than RON.
All petroleum companies (at least in Canada) has to post octane rating based on
RON + MON /2 (average of RON and MON)
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