What Octane Gasoline Should the Envision S Use?
2 Answers
The Envision S has different engine options across its models, which require different grades of fuel. Generally, the 1.5L displacement models use 92 octane gasoline, while the 2.0L displacement models require 95 octane gasoline. Automotive Gasoline: Gasoline has a high octane rating (anti-knock combustion performance) and is categorized by octane ratings such as 89, 90, 92, 93, 95, 97, and 98. Starting from January 2012, the gasoline grades 90, 93, and 97 were revised to 89, 92, and 95, respectively. Envision S: The Envision S is a mid-size SUV under the SAIC-GM Buick brand. The model lineup includes the 2020 652T FWD Elite, 2020 652T FWD Luxury, 2020 652T AWD Luxury, 2020 652T FWD Limited S Sport Edition, and the 2020 652T AWD Avenir.
I've been driving the Enclave S for a while, and refueling is crucial. The owner's manual clearly recommends using 95-octane gasoline because its engine is turbocharged. Using 95-octane fuel prevents knocking and ensures smooth engine operation. As someone accustomed to driving this model, I know 92-octane will work, but long-term use can shorten engine life and increase maintenance costs. Especially during highway driving or when carrying a full load, higher-octane fuel provides more stable performance. I suggest choosing reputable gas stations to ensure fuel purity and avoid carbon buildup issues. Regularly checking spark plugs and air filters also helps improve fuel efficiency—don't risk engine damage to save a few bucks.
