Buick Encore GX FWD (Flex Fuel): MPG and fuel economy by year
The EPA has rated the Buick Encore GX FWD (Flex Fuel) for one model year, the 2026 Buick Encore GX FWD (Flex Fuel). The most recent 2026 Buick Encore GX FWD (Flex Fuel) returns 30 combined MPG.
Pick a year below to open the full Buick Encore GX FWD (Flex Fuel) page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.
Fuel economy by model year
Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the Buick Encore GX FWD (Flex Fuel). Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.
| Year | Model | Combined MPG | City | Highway | Annual fuel cost |
|---|---|---|---|---|---|
| 2026 | 2026 Buick Encore GX FWD (Flex Fuel) | 30 MPG | 30 MPG | 31 MPG | $2,000 |
How the Buick Encore GX FWD (Flex Fuel) compares against the Small Sport Utility Vehicle 2WD class
Buyers usually compare the Buick Encore GX FWD (Flex Fuel) against other cars in the same EPA class. The list below shows the most efficient cars in the Small Sport Utility Vehicle 2WD class for the 2026 model year, the latest year on this page. Each link opens the full page for that car.
Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.