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Originally Posted by Lon
Although I believe here in Australia, we have a slightly different octane rating scale to you guys in the US. but anyway...
92 = regular unleaded
95 = premium unleaded
98 = high octane unleaded
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We use the (R+M)/2 method of reporting octane, or the average between research and motor. Australia just reports the research number, hence the higher value.
http://www.refiningonline.com/Engelh...ep/TCR4_29.htm
- Greg -