Should the 2021 Levin use 92 or 95 octane gasoline?
3 Answers
Both 92 and 95 octane gasoline can be used, but it is best to consistently use one type. There is not much difference between 92 and 95 octane gasoline in essence; the only difference lies in the octane rating. 95 octane gasoline consists of 95% isooctane and 5% n-heptane, while 92 octane gasoline consists of 92% isooctane and 8% n-heptane. Below are some related points: 1. Gasoline octane rating: The gasoline octane ratings that car owners see actually refer to the ratio of the gasoline's anti-knock properties compared to standard gasoline. For example, 95 octane gasoline indicates that its anti-knock properties are the same as those of standard gasoline containing 95% isooctane and 5% n-heptane. This does not mean that the 95 octane gasoline used in daily life contains 95% octane. 2. Higher octane does not mean better quality: Additionally, a higher octane rating only indicates better anti-knock properties and does not mean the gasoline is of higher quality. There is also no experimental proof that it improves the cleaning properties of gasoline. Moreover, the vehicle manuals specify which type of gasoline is suitable for each model. It is best for car owners not to mix different types of gasoline to avoid causing engine knocking.
I've been driving a 2021 Toyota Levin for almost a year now. The manual clearly recommends using 92-octane gasoline because the engine is designed to match this low-octane unleaded fuel. As an average car owner, I stick to 92-octane for my daily 50km commute. The engine runs smoothly, with stable fuel consumption around 6L/100km, and I've never encountered any issues. I've tried 95-octane a few times and noticed slightly quicker acceleration, but the minor improvement isn't worth the extra cost per liter. In reality, using 95-octane costs me about 100-150 yuan more per month compared to 92-octane. I'd rather save that money for maintenance. I recommend checking your car's manual—it's the most reliable guide. The Levin doesn't need higher-octane gasoline to boost performance; it's just a waste of money. Developing a habit of recording fuel consumption makes it easier to spot any abnormalities.
As a car enthusiast, I've done research on gasoline choices: The 2021 Levin's engine has a relatively low compression ratio, and the manufacturer recommends 92-octane unleaded gasoline as sufficient. Higher-octane 95-grade fuel may offer slightly better anti-knock properties, potentially reducing cold-start vibrations marginally, but the difference is nearly imperceptible during normal driving. I've used 92-octane for over a year without any engine issues, with fuel consumption almost identical to 95-octane—actual data shows less than 0.2L/100km difference. The 10% higher cost of 95-octane makes it unsuitable for budget-conscious drivers. The manual is the authoritative source—following it is always correct. Additionally, only modified sports models require high-octane fuel; factory-spec Levins need not worry. Regular air filter changes matter more than fuel grade selection.
