Which Cars Require 98 Octane Gasoline?

[LeAniyah]

Vehicles with an engine compression ratio of 10 or higher, sophisticated European luxury cars with complex electronic systems, high-performance sports cars, and vehicles with fuel tank caps labeled "Please use 95 octane or higher gasoline." Below are specific details about 98 octane gasoline: 1. Anti-knock Performance: 98 octane gasoline offers better anti-knock performance. Since isooctane has good anti-knock properties while n-heptane performs poorly in this regard, a higher octane rating indicates better anti-knock performance. By extension, 98 octane gasoline means superior anti-knock capability. 2. High Combustion Value: 98 octane gasoline is equivalent to a mixture of 98% isooctane and 2% n-heptane in terms of octane rating. Engines with high compression ratios should use high-octane gasoline; otherwise, abnormal combustion may occur, leading to knocking, increased fuel consumption, and reduced driving power. Compared to other octane ratings, 98 octane gasoline provides stronger anti-knock performance, higher combustion value, and delivers more powerful performance.