Can the Buick Regal Use 92 Octane Gasoline?

[WalkerFitz]

The Buick Regal 1.5T model uses 92 octane gasoline, while the 2.0T model requires 95 octane gasoline. Only when the octane rating of the gasoline meets the engine's compression ratio requirements can the vehicle's performance and fuel efficiency be fully optimized. Regal owners can refer to the car's user manual, which specifies the recommended fuel grade. Introduction to gasoline grades: The gasoline grade represents the octane rating of the fuel. The higher the grade, the higher the octane rating, indicating better anti-knock performance. Better anti-knock performance ensures smoother engine operation, reduces wear, and provides better engine protection. However, a higher fuel grade is not always better. Introduction to compression ratio: Every car's manual includes a term called compression ratio. Generally, if a high-compression-ratio engine uses low-grade gasoline, it can lead to incomplete combustion, severe engine vibration, reduced power output, component damage, increased fuel consumption, and poor driving performance.

[DeVincent]

I've been using my Buick Regal for several years, always filling it with 92-octane gasoline, and never had any problems. The manual clearly states that 92-octane or higher can be used, with 92 being the minimum requirement. The engine is designed with an automatic adjustment function to adapt to lower octane ratings and prevent knocking. This way, refueling is both economical and convenient, saving me dozens of yuan each month. The key is to go to reputable gas stations to ensure the fuel is clean and free from impurities. Consistently following this practice protects the engine and extends its lifespan. Occasionally filling up with lower-octane fuel by mistake is nothing to panic about—the system will compensate. Remember, the manual is the best guide; don't blindly believe in premium fuel.

[Bustamante]

The Buick Regal's engine is based on modern technology and is fully compatible with 92-octane gasoline, with 92 being the minimum requirement. The ECU system can dynamically adjust the ignition timing, preventing knocking and protecting internal components even if the octane rating is slightly lower. I've researched many similar cases on automotive forums, and using 92-octane fuel is completely safe and economical. There's no need to use higher-octane fuels like 98-octane unless the engine is tuned for higher power—otherwise, it's just a waste of money and may even lead to carbon buildup. I recommend referring to the user manual and not being misled by flashy advertisements. Following standard procedures ensures peace of mind and prolongs engine health.

[SanCaden]

Using 92-octane gasoline is completely fine. I've been driving my Buick Regal for five years and only use 92-octane fuel. Saving a little on each liter adds up to quite a significant amount over time. The manual states that 92-octane or higher is acceptable, so don't worry about engine damage—modern car computers can adapt. Long-term use is not an issue; the key is to choose a reliable gas station and avoid shady ones just to save a few bucks. Saving money is the priority, and the performance is sufficient for daily driving. Don't bother with higher-octane fuel unless you're racing; otherwise, 92-octane is the most practical choice.

[RyleeRose]

The Buick Regal officially requires the use of unleaded gasoline with an octane rating of 92 or higher, so using 92-octane fuel is fully compliant and will not harm the engine. However, it's important to note that using gasoline with an octane rating lower than 92 may cause knocking and long-term damage to the pistons and cylinders. Therefore, strictly adhering to the manual is essential, and it is recommended to refuel at reputable gas stations to ensure fuel quality. Additionally, while the engine control system can adjust, low-octane fuel may pose a slight risk under extreme conditions, such as climbing steep hills. Prioritize safety by using 92-octane fuel and combining it with regular maintenance to avoid unnecessary damage.