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What Type of Gasoline Should the 2021 Regal Use?

3 Answers

McCamille

07/24/25 4:51pm

2021 Regal can use 92 octane gasoline or higher. Below is more extended information about the 2021 Regal: 1. Design: The new Regal draws design inspiration from the Buick Avenir and Avista concept cars, with minimal differences from the previous model. It continues to feature a long hood, short front overhang, and wide body design, blending high-end style with a sporty flair. 2. Features: A major highlight of the 2021 Regal is its upgraded features. The entire lineup comes with the upgraded Buick eConnect intelligent connectivity technology, supporting Apple CarPlay and Baidu CarLife smartphone integration, OnStar 24/7 online assistant, and OTA remote upgrades. Additionally, it includes the new AutoNavi real-time online navigation system and enhanced cloud-based intelligent voice interaction functionality.

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JosiahDella

08/10/25 7:56am

I've been driving this 2021 Regal for over a year now. The manual specifies using 87 octane unleaded gasoline, as the engine's compression ratio is moderately designed by the manufacturer, making regular fuel the most suitable. Don't be fooled into using higher octane fuels like 95 or 97—it's just a waste of money with no benefits, and it might even cause carbon buildup or slight engine damage. Once, I tried to save money by filling up at a small gas station with low-quality fuel, and the engine noise became noticeably louder. The problem was resolved after switching back to standard 87 octane from a reputable station. So, always check the fuel grade when filling up—it's both economical and safe. Regularly inspecting the fuel system and filters can extend the engine's lifespan and ensure smoother performance on the highway. That's my experience speaking.

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KhloeFitz

09/25/25 8:36am

As a car enthusiast, I've studied the fuel system of the 2021 Regal, which recommends 87-octane unleaded gasoline. The engine is turbocharged but tuned for efficiency, so using premium fuel won't boost acceleration and would just be a waste of money. During my test drive, I noticed that with 87-octane, fuel consumption averaged 8-9L/100km, and it was the same with 95-octane. My advice is not to overcomplicate things—focusing on fuel quality is more practical. Choose reputable gas station brands to avoid fuel with impurities. Drive gently in daily use, minimize sudden braking to protect the engine and be eco-friendly. Keeping it simple and hassle-free is key—no need to chase high performance.

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