Is it better to use 92 or 95 octane for turbocharged engines?
1 Answers
Most turbocharged engines require a minimum of 95 octane gasoline because turbocharged engines operate under higher temperatures and pressures, and using 95 octane gasoline can prevent engine knocking. Octane Rating: Different grades of gasoline have different octane ratings, and gasoline with different octane ratings also has varying anti-knock properties. Higher-grade gasoline can prevent knocking in the engine. Knocking: Knocking is an abnormal combustion phenomenon in the engine. When the piston is in the compression stroke, it compresses the combustible mixture as it moves upward, increasing the pressure and temperature of the mixture. If the gasoline's stability is poor, the combustible mixture may ignite before the spark plug fires.