Should the Excelle use 5W30 or 10W40 engine oil?

[MacAlan]

The Excelle uses 5W30 engine oil. Engine oil is referred to as the lifeblood of the engine, serving not only a lubricating role within the engine but also functions in cleaning, sealing, cushioning, rust prevention, and heat dissipation. Without engine oil, the engine cannot operate normally. In terms of power, the Excelle is equipped with a 1.3-liter naturally aspirated engine across all models, delivering a maximum horsepower of 107 hp, a maximum power output of 79 kW, and a peak torque of 133 Nm. For suspension, the front employs a MacPherson independent suspension, while the rear uses a compound torsion beam non-independent suspension. Externally, the Excelle adopts Buick's new-generation family design language, featuring the brand's latest winged grille with dark mesh textures and a high-gloss electroplated shield-shaped outline, exuding youthful vitality.

[Petunia]

The choice of engine oil depends on the meaning of the numbers. 5W30 and 10W40's "W" stands for winter fluidity. A smaller number before the W means easier engine lubrication in cold weather, reducing wear during cold starts. The number after indicates high-temperature viscosity. The Excelle typically has a modern engine, so 5W30 is recommended because it flows quickly in sub-zero temperatures, minimizing cold-start friction, and its 30 viscosity is sufficient for summer heat while saving fuel. 10W40 may flow slower in extreme cold, delaying lubrication, and its 40 viscosity offers stronger protection at high temperatures but increases fuel consumption, making it better suited for older cars. Check your Excelle's manual—manufacturers usually specify 5W30. Avoid switching types randomly to prevent engine damage and higher repair costs. This way, your choice will be precise, durable, and efficient.

[AxelAnn]

I've been driving my Excelle for ten years, using 5W30 oil all along without any issues. Smooth starts even in sub-zero winters without any slipping sounds, the engine runs quietly with stable fuel consumption around 7L/100km. Once I tried 10W40 as recommended by a repair shop for two months, but fuel consumption rose to over 8L/100km and the engine started buzzing. I quickly switched back to 5W30 and everything returned to normal. Even during scorching southern summers on highways, 5W30 holds up fine without overheating warnings – only consider 40 viscosity if your car is extremely old. Honestly, just follow the manual: 5W30 is worry-free with maintenance checks every 5,000 km – no need to overcomplicate things.

[LaMalachi]

It's correct to directly use 5W30 oil for the Excelle. The vehicle manual definitely specifies this grade - 5W30 provides optimal engine protection in most climate conditions, balancing both cold and hot temperature performance. While 10W40 might be useful for high-temperature regions or older vehicles, it's not the standard specification for Excelle. Using the wrong viscosity may affect performance and increase fuel consumption. The simple solution is to choose 5W30 without hesitation to ensure safe operation.