Can You Add 95 Octane Gasoline When 92 Octane Is Not Used Up?

[DeMiles]

92 gasoline can be topped up with 95. This does not have much adverse effect on the car and the engine itself, but due to the insufficiently high compression ratio design, the characteristics of 95 gasoline cannot be fully utilized, leading to "delayed combustion" and increased fuel consumption. Below is a related introduction to the differences between 92 and 95 octane gasoline: 1. Different contents of n-heptane and isooctane. The two most basic components of gasoline are n-heptane and isooctane. Isooctane has strong anti-knock properties and acts as a sedative for gasoline, while n-heptane is highly flammable and acts as a stimulant for gasoline. The interaction between these two means the higher the isooctane content, the stronger the anti-knock performance of the gasoline. 92 octane gasoline has a octane rating of 92 and is suitable for mid-range cars (with relatively low compression ratios), while 95 octane gasoline has a octane rating of 95 and contains 3% n-heptane. 2. The higher the label, the stronger the anti-knock performance. The grade of gasoline is an indicator of anti-knock performance, which is basically unrelated to cleanliness, power, and combustion value. The higher the gasoline label, the stronger the resistance to engine knocking. The biggest difference between 92 and 95 is that 95 is more resistant to knocking than 92.