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Octane Number

The octane number indicates the fuel’s "anti-knock rating". This is determined according to RON (Research Octane Number) under specific test conditions using precisely defined test engines. Regular fuel has the lowest rating at 91 RON, followed by Super fuel with 95 RON and, at the top end, Super Plus with a rating of 98 RON. The higher the octane number, the higher the self-ignition temperature of gasoline/petrol and the lower the knock tendency during combustion (self-ignition temperature of regular fuel 450-550 °C, Super fuel 480-700 °C).