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Calculation of Methane number- yet again :-)

Calculation of Methane number- yet again :-)

Calculation of Methane number- yet again :-)

(OP)
I have seen a few questions posted around calculating the methane number, unfortunately our local Caterpillar rep is unwilling to share his software. I have a lot of methane numbers to calculate am not that willing to share each composition with him. I saw a few comments that the calculated methane number based on an octane number approach gave a 10% error. Any new wisdom after the last post will really be appreciated?

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