How much cheaper is 92 gasoline compared to 95 gasoline?

[MaverickLee]

92-octane gasoline is cheaper than 95-octane gasoline, but only by a few cents. Here are more related details: 1. The difference between the two: The most obvious difference between these two types of gasoline is the ratio of n-heptane and isooctane. 92-octane gasoline contains 92% isooctane and 8% n-heptane, while 95-octane gasoline contains 95% isooctane and 5% n-heptane. From this, it can be seen that 95-octane gasoline has a higher isooctane content and better anti-knock performance. 2. Avoid frequently switching between different octane ratings: Frequent switching of gasoline octane ratings by car owners can confuse the engine's ignition system. In practice, car owners should not frequently change gasoline octane ratings. If they choose 92 or 95, they should stick with it consistently. If they want to switch gasoline types, they should stick with the chosen type for a long time. Additionally, mixing gasoline types is highly discouraged, as it can confuse the engine.

[McJasper]

Actually, the price difference between 92 and 95 octane gasoline typically ranges from 0.3 to 0.5 RMB per liter, depending on the region and gas station. Take my over-ten-year-old car as an example—at the local Sinopec station, 92 octane is about 0.4 RMB cheaper per liter than 95 octane. This price gap isn’t fixed; I remember it was just a few cents a decade ago. Now, gasoline prices are rising fast overall, influenced by crude oil market fluctuations. Why is 95 octane more expensive? It has a higher octane rating, making it suitable for high-performance engines and providing smoother driving. But for regular family cars without special needs, 92 octane is sufficient—no need to overspend on higher grades. It’s best to refuel during fixed periods, like Friday promotions, which often offer discounts for extra savings. In the end, saving around 20 RMB per 50-liter tank is enough for a small meal out, but safety comes first—don’t risk damaging your car just to save a few bucks.

[EdwardMarie]

From a household expense perspective, 92-octane gasoline is about 0.35 yuan cheaper per liter than 95-octane, saving enough for daily necessities. My SUV requires 60 liters per fill-up, so using 92-octane saves around 20 yuan compared to 95-octane each time. While the amount seems small, filling up twice a month adds up. The key isn't blindly choosing cheaper fuel—my vehicle's manual specifies 92-octane, so it's worry-free and economical. However, if your car has a turbocharged engine, using lower octane fuel may cause knocking. Check fuel price apps like AutoNavi Map, which displays real-time local station prices and offers reward points for discounts. Don't overlook fuel quality—smaller stations may be cheaper but contain more impurities, while major brands are more reliable. Develop good driving habits like gradual acceleration and fewer sudden brakes to improve fuel efficiency naturally.

[StAlyssa]

The price of 92-octane gasoline is generally 0.3 yuan cheaper per liter, while 95-octane, with its higher octane rating, is designed for engines with higher compression ratios, offering better anti-knock performance. From my driving experience: regular naturally aspirated engines run perfectly fine on 92-octane; however, luxury cars or sports cars are better matched with 95-octane. The price difference is actually a minor issue—what matters more is fuel selection and driving habits. For example, using lower-octane fuel for city driving is common, while for long-distance highway trips, you can mix fuels as needed. Don’t overthink the small price gap; focus more on maintaining stable fuel levels and engine cleanliness. If you accidentally use the wrong fuel, simply adjust promptly.