Question

which has highest octane number

Answer 1

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Octane number is also known as octane rating. Octane numbers are based on a scale on which isooctane is 100 (minimal knock) and heptane is 0 (bad knock). The higher the octane number, the more compression required for fuel ignition. Fuels with high octane numbers are used in high performance gasoline engines.

Answer 2

The most commonly used oxygenate is MTBE (methyl tertiary butyl ether). The systematic name is 2- methoxy-2-methylpropane. Its octane rating is 118. using a mixture of high-octane compounds in petrol manufacture.

Octane number is also known as octane rating. Octane numbers are based on a scale on which isooctane is 100 (minimal knock) and heptane is 0 (bad knock). The higher the octane number, the more compression required for fuel ignition. Fuels with high octane numbers are used in high performance gasoline engines.