Why do domestic turbocharged engines use 92-octane gasoline?

[StZane]

Using 95-octane gasoline in vehicles designed for 92-octane does not improve fuel efficiency, increase power, or protect the engine. Therefore, domestic turbocharged engines use 92-octane gasoline. Below are the differences between 95 and 92-octane gasoline: 1. Composition ratio: 95-octane gasoline contains 95% isooctane and 5% n-heptane, while 92-octane gasoline contains 92% isooctane and 8% n-heptane. 2. Anti-knock performance: 95-octane gasoline has higher anti-knock properties, whereas 92-octane gasoline has lower anti-knock properties. Here are some additional details: 1. Turbocharger: If the engine is equipped with a turbocharger, it is essential to use gasoline with an octane rating of 95 or higher. 2. Naturally aspirated engines: Naturally aspirated engines can use gasoline with an octane rating of 92 or higher.