Higher octane gasoline is not necessarily better; the octane rating only represents the gasoline's anti-knock performance. Here is a related introduction about gasoline octane ratings: Density of different octane gasoline: The density of gasoline varies with different octane ratings. The most commonly encountered are 92-octane and 95-octane gasoline. The density of 92-octane gasoline is approximately 0.72g/ml, while 95-octane gasoline has a density of about 0.725g/ml, and 98-octane gasoline has a density of around 0.737g/ml. From this, it can be observed that the higher the octane rating, the greater the density of the gasoline. This is primarily because gasoline is a mixture, and different octane ratings are achieved by adding various additives to the base gasoline. Octane Rating: Higher octane gasoline uses more additives, and the density of these additives is greater than that of the base gasoline. Therefore, the higher the octane rating, the greater the density of the gasoline. It is worth noting that the reason gasoline has octane ratings is primarily due to the different anti-knock performances of different octane ratings, not because higher octane gasoline has fewer impurities. Higher octane gasoline has better anti-knock performance, meaning the engine is less likely to experience premature combustion during operation. Additionally, the octane rating of gasoline is determined by the engine's compression ratio.
