Is 97 Octane Gasoline the Same as 95 Octane?
1 Answers
97 octane gasoline is not the same as 95 octane. Here are the specific differences between 97 octane and 95 octane gasoline: 1. Composition: 97 octane gasoline consists of 97% isooctane and 3% n-heptane, while 95 octane gasoline consists of 95% isooctane and 5% n-heptane. 2. Stability: 97 octane gasoline has better stability and is easier to ignite. 3. Anti-knock Performance: Gasoline grades are classified by octane rating. 97 octane gasoline refers to a fuel with anti-knock performance equivalent to a mixture of 97% isooctane and 3% n-heptane. The higher the octane number, the better the anti-knock performance. Different grades of gasoline should be selected based on the engine's compression ratio, which is usually indicated in the vehicle's user manual.