Should the Envision use 92 or 95 octane gasoline?
2 Answers
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.
