What is the difference between 98 octane and 95 octane gasoline?
1 Answers
98 octane and 95 octane gasoline differ in octane number and anti-knock combustion capability. Below are the specific differences: Difference in octane number: 98 octane gasoline is a mixture equivalent to 98% isooctane and 2% n-heptane; 95 octane gasoline consists of 95% isooctane and 3% n-heptane. Difference in anti-knock combustion capability: 98 octane gasoline has higher anti-knock performance and power; 95 octane gasoline has average anti-knock combustion capability. Gasoline appears as a transparent, flammable liquid, refined from various petroleum-derived components such as straight-run gasoline, catalytic cracking gasoline, and catalytic reforming gasoline, blended with high-octane components, primarily used as fuel for spark-ignition internal combustion engines in automobiles.