How many models of gasoline are there?

Common gasoline models are No.89, No.92, No.95 and No.98, among which No.98 gasoline has the highest grade and the highest price.

No.89 gasoline contains 89% isooctane; No.92 gasoline contains 92% isooctane; No.95 gasoline contains 95% isooctane; No.98 gasoline contains 98% isooctane. The higher the gasoline grade, the higher the isooctane content and the stronger the antiknock performance.

Different gasoline models have different requirements for automobile compression ratio. The higher the compression ratio of the engine, the higher the requirements for gasoline models. Engines with compression ratio above 8.0 generally use 92 # gasoline; No.95 gasoline should be selected for engines with compression ratio above 9.0; Engine with compression ratio above 10.0 should use No.98 gasoline.

No.92 gasoline is suitable for ordinary cars with low technical content, No.95 gasoline is suitable for most cars, and No.98 gasoline is suitable for luxury cars and sports cars.