Question

:) What is octane number of petrol?
Explain?
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Answer 1

Answer:

An octane rating, or octane number, is a standard measure of an engine or aviation gasoline capability against compression. The higher the octane number, the more compression the fuel can withstand before detonating. ... Use of gasoline with lower octane numbers may lead to the problem of engine knocking.

Answer 2

Answer:

Regular petrol is rated at 91 octane. "There is a long-time demand from SIAM (Society of Indian Automobile Manufacturers) for 95 octane gasoline," said Vaidya. However, with the monumental challenge of switching to low-sulphur fuels during the transition to BS6, the oil industry had decided to stick to 91 octane.