What does you gasoline’s RON (Research Octane Number) mean?

Fuel’s octane content measure or RON describes the knock resistance of gasoline before it is automatically ignited. Higher RON value indicates slower combustion process, which means minimal engine residue. In Indonesia, the typical RON values associated with gasoline products are RON 90, RON 92, RON 95, and RON 100.

However, fuel with high RON value requires compatible vehicle engine. Older engines usually work best with regular fuel with low octane considering their average engine compression ratio of between 8 and 9. The opposite applies to newer engines or bigger engines that have compression ratio above 10, which will make them run more efficiently and effectively with high RON fuel. Efficient fuel consumption should be aimed for, as it is a positive way to minimize adverse environmental effects.