Octane number is a value used to indicate the resistance of a motor fuel to knock. Octane numbers are based on a scale on which isooctane
is 100 (minimal knock) and heptane
is 0 (bad knock).
Also Known As:
A gasoline with an octane number of 92 has the same knock as a mixture
of 92% isooctane
and 8% heptane
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