2021 Buick Encore GX FWD (1.2L 3-cyl) MPG & Specs
Quick answer
The 2021 Buick Encore GX FWD gets an EPA-estimated 28/31 MPG (city/highway) and 29 MPG combined, with an estimated $2,100/year fuel cost and 302 g/mi CO₂. Engine: 1.2 L 3-cyl.
The 2021 Buick Encore GX FWD with the 1.2-liter 3-cylinder regular gasoline engine returns an EPA-estimated 28 MPG in the city and 31 MPG on the highway, for a combined 29 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 1.2 L 3-cyl |
| Transmission | Automatic (variable gear ratios) |
| Drive | Front-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Small Sport Utility Vehicle 2WD |
| MPG — city | 28 |
| MPG — highway | 31 |
| MPG — combined | 29 |
| Annual fuel cost* | $2,100 |
| CO₂ tailpipe | 302 g/mi |
| EPA GHG score | 6/10 |
How efficient is it?
With a combined 29 MPG, the 2021 Buick Encore GX FWD sits in the good range for fuel economy. That is roughly 18% thirstier than the typical Small Sport Utility Vehicle 2WD of its era (35 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $2,100 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2021 Buick Encore GX FWD. Over five years that is roughly $10,500 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2021 Buick Encore GX FWD emits approximately 302 grams of CO₂ per mile at the tailpipe, earning an EPA greenhouse-gas score of 6 out of 10. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.