How to Distinguish Between 92 and 95 Gasoline?
1 Answers
92 and 95 gasoline can be distinguished in the following aspects: 1. Composition of 92 and 95: 92 gasoline consists of 92% isooctane and 8% n-heptane, while 95 gasoline is composed of 95% isooctane and 5% n-heptane. The reason 95 gasoline is slightly more expensive is due to its higher proportion of isooctane. Isooctane also has another function, which is anti-knock. This means the higher the proportion of isooctane, the better the anti-knock performance. Each engine is given a comprehensive evaluation before leaving the factory, and based on the engine's performance and other data characteristics, the anti-knock requirement is specified, which determines the grade of gasoline to be used. 2. Price difference between 92 and 95: A tank of 95 gasoline is slightly more expensive than a tank of 92 gasoline. By subtracting the price of 92 gasoline from that of 95 gasoline and then multiplying by 8, you can obtain the price difference per 100 kilometers of car fuel consumption. 3. Power of 92 and 95: 95 gasoline with a higher octane rating is suitable for engines with higher compression ratios. This is because as the operating speed of such engines increases, the ignition timing in the cylinder will advance more and more. When the speed reaches a critical point, the air-fuel mixture in the cylinder may ignite prematurely before the spark plug fires, a phenomenon known as "knocking." Increasing the octane rating of gasoline can effectively enhance anti-knock performance.
