
The Buick Regal GS has a fuel tank capacity of 60 liters, and it is recommended to fill it up to 80%. The manufacturer suggests using 95-octane gasoline. Below is relevant information: Exterior Design: Under the influence of sculptural aesthetics, the all-new Buick Regal GS boasts an increasingly striking and eye-catching style. Equipped with new aerodynamic body kits and with expert attention to styling details, the all-new Regal GS appears lower, wider, and more dynamic. Powertrain: The Regal GS comes standard with General Motors' flagship powertrain combination, consisting of the eighth-generation Ecotec 2.0T variable-cylinder turbocharged engine and a 9-speed HYDRA-MATIC intelligent transmission. It delivers a maximum power output of 174 kW and achieves a peak torque of 350 N·m across a broad rpm range of 1500-4000 rpm.

Regarding what type of gasoline to use for the Regal GS, I've driven it for several years and believe it's best to choose 95-octane gasoline. The car's engine is designed for high performance with a high compression ratio. Using lower-octane fuel like 92 can easily cause knocking issues, resulting in engine vibration and reduced power. I've personally tried 92-octane and clearly felt the acceleration was less smooth. After switching to 95, the engine noise became quieter, and power delivery was more stable at high speeds. From a long-term maintenance perspective, although 95-octane is slightly more expensive, it prevents engine damage and saves on repair costs. The manual also explicitly recommends high-octane 95 fuel. Remember to choose reputable gas stations and avoid small roadside ones, as fuel quality varies greatly. Additionally, the GS is a sports model—using the right fuel ensures optimal performance. Don't compromise the experience to save a little money.

I've been researching car engines for a while now, and the Regal GS requires 95 octane gasoline to perform at its best. High-octane fuel prevents knocking and ensures the proper operation of turbocharged or high-compression engines. I usually fill up with 95 octane for my daily driving—it burns more completely, and fuel consumption stays within a reasonable range, so it doesn’t cost extra. If you're unsure at the gas station, checking the owner’s manual or the official app is the most reliable way to confirm. Here’s a tip: don’t mix different fuel grades, as it can cause unstable fuel delivery. Also, considering fuel quality, choosing major-brand gas stations helps avoid impurities that could damage the engine. This car is a blast to drive, so picking the right fuel is crucial.

The fuel requirement for the Regal GS is straightforward: the manufacturer recommends using 95-octane gasoline for optimal safety. Lower octane fuels like 92 may cause engine knocking, affecting stability and longevity. Personally, I always use 95-octane in my GS for better throttle response and enhanced durability. Remember, cutting corners on fuel isn't where you should save.


