Which Cars Require 95 Octane Gasoline?

[AuroraMarie]

Cars that use 95 octane gasoline are typically mid-to-high performance models, most of which are equipped with turbocharged engines. 95 octane gasoline contains 5% n-heptane and 95% isooctane, offering excellent anti-knock properties that suit the complete combustion requirements of such engines. Relevant details are as follows: Gasoline Grade Selection: Vehicles with high compression ratios should use 95 octane, while those with low compression ratios can use 92 octane. Generally, whether gasoline can fully deliver its power depends on the engine's compression ratio. High-compression engines burn fuel faster; if the octane rating is insufficient, knocking may occur. For example, German cars typically require 95 octane to achieve optimal performance, whereas some Japanese models perform adequately with 92 octane. Advantages of 95 Octane Gasoline: 95 octane gasoline also has better compatibility than 92 octane. This means if a car normally uses 92 octane, it can safely switch to 95 octane. Conversely, 95 octane can also be used in vehicles designed for 92 octane. Although 92 octane is cheaper, 95 octane offers superior combustion efficiency. The difference in fuel economy per 100 kilometers is minimal, and 95 octane provides better engine protection.