What grade of gasoline should the Changan Unit use?

[MacGraham]

The Changan Unit uses 92-grade gasoline. The Changan Unit is a compact SUV under the Changan brand. Taking the Changan Unit 2020 Flagship model as an example, its body dimensions are: length 4515 mm, width 1870 mm, height 1565 mm, with a wheelbase of 2710 mm. The Changan Unit 2020 Flagship model is equipped with a 1.5L turbocharged engine, with a maximum power of 132 kW, a maximum power speed of 5500 rpm, a maximum torque of 300 Nm, and a maximum torque speed range of 1250 to 3500 rpm. It adopts MacPherson independent suspension and multi-link independent suspension.

[MaliaRose]

I drive a Changan UNI-T, and the official recommendation for this 1.5T turbocharged engine is to use 92-octane gasoline, which is also indicated inside the fuel tank cap. For daily city commuting, I always use 92-octane—it's perfectly adequate and saves money. The difference is especially noticeable when gas prices spike; a full tank can save enough for a cup of milk tea. However, when driving on highways or climbing slopes with a full load, I occasionally switch to 95-octane, as the throttle response feels crisper. Just remember: don’t cheap out with anything below 90-octane—long-term use of low-grade fuel can cause engine knocking and damage. Also, ignore gas station upsells for 98-octane; it’s a total waste. Regularly cleaning carbon deposits from the fuel system does help with fuel efficiency.

[KendraAnn]

As a turbocharged car owner, I pay close attention to refueling. The UNI-T engine has a compression ratio of 9:1, making 92-octane gasoline the most suitable choice, as its octane rating effectively suppresses knocking. In practice, I've used both 92 and 95 octane. The 92 octane fully meets daily driving needs, providing smooth acceleration and stable fuel consumption. While 95 octane theoretically offers slightly higher combustion efficiency, the actual fuel-saving effect is negligible, and the cost per kilometer ends up being higher. The key is to choose reputable gas stations, as fuel from smaller stations often contains more impurities that can clog fuel injectors. During my last maintenance, the technician mentioned that using the right engine oil is more crucial for engine protection than opting for higher-octane fuel.

[DelRowan]

Having driven the UNI-T for over two years, I only use 92-octane gasoline. The engine tuning of this car is specifically designed for 92-octane fuel, and using higher-octane gasoline won't improve performance or save fuel. The manual clearly states that gasoline below 90-octane is strictly prohibited, as lower-octane fuel has insufficient anti-knock properties and may cause pre-ignition knocking sounds. When refueling, avoid waiting until the fuel light comes on. The fuel pump relies on gasoline for cooling, and prolonged low fuel levels can shorten its lifespan. It's recommended to add a fuel system cleaner monthly, especially if you frequently take short trips. There's no need to switch octane levels during fuel price fluctuations—the engine performs more stably with consistent fuel quality.

[KatherineRose]

I've compared the differences between using 92 and 95 octane gasoline in the UNI-T. There's almost no difference in city commuting, but when climbing continuous slopes, the engine noise is slightly quieter with 95 octane. However, the economic calculation is clear: for a 50-liter fuel tank, filling up with 92 octane saves over 30 yuan compared to 95 each time, enough for a fast food meal. A tip for refueling is to avoid the queues just before a price hike and try to choose Sinopec or PetroChina. Also, don't fill up the tank completely in summer, as the thermal expansion of gasoline can cause overflow from the carbon canister. If you see a tanker truck refueling at the gas station, it's best not to fill up then, as the newly added fuel can stir up sediment impurities.