Is it necessary to use 95-octane gasoline?

[AdrianaLee]

Whether it is necessary to use 95-octane gasoline depends on the specific vehicle model. Explanation of gasoline grades: Although higher-octane gasoline offers better anti-knock performance and power, vehicles designed for lower-octane fuel should not blindly opt for higher-octane gasoline. Higher octane ratings are more suitable for engines with larger compression ratios, while engines in vehicles that use lower-octane fuel typically have smaller compression ratios. Using higher-octane gasoline in such engines may increase knocking. Avoid mixing different grades: Different grades of gasoline should not be mixed, such as blending 98 and 95-octane gasoline. Long-term use of mixed fuels may have adverse effects on the engine, potentially leading to issues like carbon deposits and increased fuel consumption.