
The Envision can use both types of gasoline. Models equipped with the 1.5L turbocharged engine use 92 octane gasoline, while those with the 2.0L turbocharged engine use 95 octane gasoline. The main difference between gasoline grades lies in their octane ratings, with virtually no other distinctions. The recommended gasoline grade is clearly indicated on the fuel filler cap or in the owner's manual - simply follow these recommendations. The Envision measures 4,686mm in length, 1,839mm in width, and 1,686mm in height, with a wheelbase of 2,750mm. It features a rare-in-class CDC continuous damping control system and offers two intelligent four-wheel-drive systems (Intelligent AWD and Intelligent All-Terrain AWD) along with the FlexRide four-mode adaptive driving system.

I've been driving a Buick Envision for several years and have always used 92-octane gasoline without any issues. The fuel cap or owner's manual clearly recommends 92-octane as the minimum standard. While 95-octane is usable, it's more expensive and unnecessary to waste money on it. The gasoline octane rating represents the fuel's anti-knock index - higher grades like 95-octane have better anti-knock properties, but the Envision's engine is designed to run perfectly on 92-octane. During daily driving, the power delivery feels smooth and fuel consumption remains stable. Occasionally using 95-octane won't harm the engine, though it's more costly. I'd recommend regularly checking the manual or consulting the 4S dealership for confirmation. More importantly, fuel quality and gas station selection matter most - choosing reputable stations ensures purity and cleanliness, extending engine life. Saving on fuel costs is every car owner's concern, and developing this habit brings peace of mind and convenience.

From a technical perspective, gasoline grades such as 92 or 95 refer to the octane rating. The higher the number, the better the anti-knock performance, which prevents engine knocking and component damage under high temperatures. Most Buick Envision models are designed with an engine compression ratio compatible with 92-octane gasoline. I've checked the official manual, which clearly states that using 92-octane meets the requirements. While using 95-octane gasoline is harmless, it offers poor cost-effectiveness—costing several cents more per liter, which adds up to significant waste over time. However, occasionally using 95-octane during high-altitude or highway driving can slightly improve efficiency. The key, in my opinion, is to avoid mixing different grades or using low-quality fuel, as this may lead to carbon buildup or trigger fault warnings. For everyday driving, keeping an eye on the fuel gauge and refilling promptly ensures smooth operation.

Saving money is my top priority. Having driven the Envision for almost a year, I've found that using 92-octane gasoline saves me dozens of dollars in monthly fuel costs compared to 95-octane, which is significantly more expensive. The octane rating primarily affects anti-knock performance, but for regular city driving, 92-octane provides equally stable power without any engine knocking or vibrations. The manual recommends 92-octane as the baseline, and I've followed this without any issues. Insisting on 95-octane would mean spending hundreds more annually without justification. Since fuel costs make up a major portion of car maintenance expenses, choosing the right octane can be paired with driving habits—like gentle acceleration and fewer sudden brakes—to save even more. Don’t fall for the misconception that higher octane is always better; the Envision’s engine is optimized for 92-octane. Also, consider seasonal variations when refueling to avoid shortages disrupting your trips.


