Buick MPG by Model
See Buick MPG for all 4 current models, with links to each one's year-by-year EPA ratings.
Buick Models and Their EPA Ratings
The EPA has rated 730 Buick vehicles since 1984, and these are the models with ratings from 2024 or later. Each one links to its full page with every engine, drivetrain and model year. The latest-year column shows the spread from the least to the most efficient version that year. 28 older Buick models whose last EPA rating is from 2023 or earlier aren't listed yet.
Buick MPG Questions
Which Buick gets the best gas mileage?
Among 2026 models, the Encore GX FWD FFV has the best EPA rating at 30 MPG combined (30 city, 31 highway).
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Where These Numbers Come From
This Buick page was put together by Cedrick Reese from the EPA fuel economy file published on fueleconomy.gov. The model list and every rating on it are generated from that file, so nothing is typed in by hand. Each model page shows the individual EPA records behind these numbers, with a link to each one. When the EPA posts an updated file, this page and the Buick model pages are rebuilt from it.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA