What octane gasoline should the Excelle use?

[VanFelicity]

Excelle should use 92-octane gasoline, and 95-octane gasoline can also be used. However, gasoline below 92-octane or non-compliant gasoline must not be used, as it may damage the engine and emission system. The vehicle maintenance manual specifies the use of unleaded gasoline with a nominal octane rating of 92 or higher. It is recommended to follow the vehicle's user manual for fuel selection, as using the recommended fuel is an important part of proper vehicle maintenance, ensuring engine cleanliness and optimal vehicle performance. The Excelle is a compact car under the Buick brand, featuring a 4-door, 5-seat sedan body structure. Its dimensions are 4609mm in length, 1798mm in width, and 1486mm in height, with a wheelbase of 2640mm.

[KingstonRose]

As an owner of the Buick Excelle, based on my experience and the manual recommendations, I can tell you that using 92-octane unleaded gasoline is the most suitable choice. The engine compression ratio of the Excelle is designed to match 92-octane fuel, which ensures smooth engine operation and good fuel economy. Some people mistakenly believe that using 95-octane gasoline will improve performance, but it's unnecessary to spend extra money; while fuel consumption might slightly decrease with 95-octane, the effect is negligible. Worse still, using fuel below 90-octane can cause knocking and damage the engine. My car has been running for over 5 years, regularly fueled with 92-octane at reputable gas stations, and has never had any issues. It's also crucial to regularly check the fuel pressure system and filters to avoid clogging from impurities. In summary, when choosing gasoline, always align with the vehicle's design and avoid impractical upgrades.

[Julia]

In my daily repair work, I encounter many cases involving the Buick Excelle. The standard answer is to use 92-octane unleaded gasoline. The vehicle manual clearly recommends 92-octane fuel because the engine's compression ratio is around 9.5:1, which makes it perfectly suitable. Using 92-octane ensures proper ignition and prevents common issues like engine knocking. Many car owners mistakenly believe that using 95-octane is better, but it’s just a waste of money with no real benefits. On the other hand, using 87-octane will immediately cause vibration and noise issues. In actual repair scenarios, we often see problems like spark plug carbon buildup or fuel pump damage due to incorrect fuel grades. I advise owners to stick with 92-octane as specified in the manual and choose reputable gas stations, as poor-quality fuel can cause even greater harm. Regularly changing the fuel filter and inspecting the fuel system are good habits to prevent minor issues.

[Tony]

I've been driving my Excelle for two years and always choose 92-octane fuel. It feels perfectly adequate and affordable. Friends often say 95-octane offers better performance, but after trying it a few times, I noticed minimal acceleration difference – not worth the extra cost. The manual recommends 92-octane as it matches the engine, and my fuel consumption stays stable at around 6L/100km. Using lower-octane fuel causes engine knocking, which damages internal components. During daily driving, I refuel when the gauge shows one bar remaining, never waiting until empty. When refueling elsewhere occasionally, I pay attention to fuel brands to avoid watered-down, substandard products. Overall, 92-octane is economical – no need to waste money upgrading unnecessarily.