Should the Volkswagen Lavida use 92 or 95 octane gasoline?

[LeVivienne]

Volkswagen Lavida can use either 92 or 95 octane gasoline. Here are some relevant details about gasoline: 1. Gasoline is divided into various grades, commonly including 90#, 93#, 97#, 98#, and in some regions, even 100# gasoline. These different grades represent varying octane ratings. The higher the grade, the higher the octane rating, indicating better anti-knock performance of the gasoline. 2. The octane rating of gasoline is determined by comparing the actual gasoline with a standard fuel that is artificially blended. The standard fuel consists of two components: isooctane, which has excellent anti-knock properties, and n-heptane, which has very poor anti-knock properties. The value of isooctane is set at 100, while the value of n-heptane is set at 0.