
The Envision can use either 92 or 95 octane gasoline. Generally, vehicles with a compression ratio between 8.5 and 9.5 should use 92 octane gasoline, while those with a compression ratio above 9.5 should use 95 octane. Currently, most domestically produced cars have a compression ratio above 9, so it is recommended to use either 92 or 95 octane gasoline. The Envision's body dimensions are 4667mm in length, 1840mm in width, and 1659mm in height, with a wheelbase of 2750mm. It is equipped with General Motors' newly developed all-wheel-drive technology, significantly enhancing driving stability across various road conditions. The Envision also features an automatic engine start-stop function across all models, which helps reduce fuel consumption and exhaust emissions. This function can be manually turned off by pressing the start-stop button on the center console.

Having driven for over a decade, I've always used the Buick Envision. According to the user manual I've read, it clearly recommends using 92-octane gasoline. While 95-octane fuel has a higher octane rating, the Envision's engine is designed to work optimally with regular unleaded 92-octane gasoline. Using higher-octane fuel would actually be less economical. I always choose 92-octane when refueling, saving a significant amount of money—dozens of yuan per tank. Of course, if you frequently encounter city traffic congestion, 92-octane is perfectly adequate and won't cause any engine issues. The key is to avoid cheap, low-quality fuel and to regularly check and maintain clean fuel lines, which helps keep the car durable and trouble-free. Long-term use of higher-octane fuel offers no benefits and might even lead to carbon buildup.

I always pay attention to household expenses, so using 92-octane gasoline is the most cost-effective. The Envision's engine is quite durable, and 92-octane fuel keeps it running smoothly with decent power. I've tried 95-octane before, but didn't notice any difference—it just wasted money. For daily city driving, the savings on fuel can be used for car maintenance or family outings. A reminder: using the correct fuel grade is crucial, as the wrong type can cause knocking and safety issues. I make sure to refuel at stations with clear labeling to avoid adulterated fuel. Also, don't forget to replace the fuel filter regularly to keep the engine running healthily.

As a young car enthusiast, I feel that the engine responds faster when using 95-octane gasoline in the Enclave. The turbocharged design may be better suited for high-octane fuel, resulting in smoother acceleration and slightly reduced noise. However, 92-octane is also a good choice for its affordability. I recommend selecting based on driving habits—if you frequently accelerate hard, try 95-octane for an improved experience. But don't upgrade blindly; always check the manual's recommendations first to avoid engine damage.


