
The Sylphy is suitable for 92-octane gasoline, as its compression ratio is 9.8. Gasoline engines with a compression ratio above 9.0 should use 92-octane fuel. Taking the 2021 Sylphy as an example, it belongs to the compact car category, with body dimensions of 4631mm in length, 1760mm in width, and 1503mm in height, a wheelbase of 2700mm, front and rear track widths of 1540mm, a fuel tank capacity of 50 liters, and a trunk capacity of 510 liters. The 2021 Sylphy is equipped with a 1.6L naturally aspirated engine, delivering a maximum horsepower of 122PS, a maximum power of 90kW, and a maximum torque of 155Nm, paired with a 5-speed manual transmission.

I've been driving a Sylphy for several years and often think about refueling. It's a fuel-efficient Japanese car, and the official manual clearly recommends using 92-octane gasoline. 92-octane has a moderate octane rating, which matches the design of the Sylphy's engine. Since the compression ratio isn't high, there's no need to waste money on higher octane fuel. Using 95 or 98-octane won't cause major issues, but it's purely unnecessary—costing more without real benefits and potentially leading to incomplete combustion and increased carbon buildup. I've tried higher-octane fuel a few times and didn't see any noticeable improvement in fuel efficiency. Instead, it cost me extra cents per liter, adding up to unnecessary long-term expenses. The Sylphy's engine is well-optimized—92-octane is perfectly sufficient, whether for highway or city driving, and it keeps maintenance costs low. In short, sticking to 92-octane for this model is the smartest choice—saving money and ensuring peace of mind.

As someone who commutes daily in a Nissan Sylphy, I find that 92-octane gasoline works perfectly fine. It's affordable, available at almost every gas station, and a full tank can easily cover over 500 kilometers without any noticeable jerking. When friends driving other cars ask, I always tell them the Sylphy is designed for 92-octane fuel—there's no need to go for higher grades. I once mistakenly filled up with 95-octane and noticed no difference; the engine remained just as quiet. The key is to choose reputable gas stations to avoid fuel quality issues affecting your car. The Sylphy runs smoothly, and 92-octane is more than sufficient for daily use. Just remember to check the fuel gauge regularly and don't overcomplicate things with the fuel.

I just learned to drive and bought a Nissan Sylphy, and I started worrying about refueling. After checking the user manual and consulting experienced drivers, they all said that using 92-octane gasoline is the most suitable. The Sylphy's engine isn't that delicate, and using lower-octane fuel won't harm its performance. New drivers often misunderstand that higher-octane fuel is better, but 92-octane is economical and sufficient. The money I save on fuel each month can be used for car maintenance, such as changing the engine oil. The Sylphy's engine is highly efficient, and 92-octane burns cleanly, reducing pollution. Simply put, following the official recommendation is always the right choice.


