Octane ratings refer to the stability of fuel, and dictate at which pressures the fuel will spontaneously combust. Engine knocking can happen when the octane rating is too low, resulting in pinging ...

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After the Bharat Stage VI emissions norms were implemented in 2020, petrol’s minimum octane rating was upped from an average baseline of 88 RON to 91 RON (Research Octane Number). As of now, regular ...