Can a car that requires 95 octane gasoline use 92 octane gasoline?
2 Answers
A car that requires 95 octane gasoline should avoid using 92 octane gasoline whenever possible. Here is an extended analysis regarding gasoline: Hazards of using the wrong gasoline: If a car that requires 95 octane gasoline is consistently fueled with 92 octane gasoline for an extended period, the octane rating of the gasoline used by the engine will fall below the required level. This can lead to engine knocking and potential damage to the engine. Differences in gasoline octane ratings: The octane rating of gasoline is determined by its octane number. Gasoline with a higher octane number has stronger anti-knock properties and consequently a higher octane rating. The anti-knock performance indicator of gasoline is referred to as the octane number, which corresponds to the gasoline octane rating. Generally, engines with high compression ratios require gasoline with higher octane ratings, while engines with low compression ratios can use gasoline with lower octane ratings. This ensures the proper operation of the vehicle.
As a car enthusiast, I've driven vehicles that require 95-octane gasoline, and I believe it's best not to use 92-octane. Simply put, 95-octane fuel has better anti-knock properties. If you use 92-octane, the engine is prone to knocking under high load, making the car feel like it's vibrating with reduced power. Doing this long-term may damage the engine pistons and cylinders, and the repair costs would far exceed the savings on fuel. Once, I was in a hurry during a business trip and used 92-octane, resulting in sluggish acceleration on the return trip and abnormal engine noise, forcing me to rush back to the dealership for several days of inspection. I recommend always following the owner's manual—using 95-octane fuel for cars designed for it is safest. If you accidentally use the wrong grade, burn it off as soon as possible and refill with higher-octane fuel to minimize risks from repeated switching.
