Buick · 2021
Encore GX FWD 1.2L 3-cyl
✓ EPA Verified
Regular Gasoline
Small Sport Utility Vehicle 2WD
Front-Wheel Drive
City
28
MPG
Combined
29
MPG
Highway
31
MPG
Annual Fuel Cost
$1,500
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$650
saved per year
Class Comparison — Small Sport Utility Vehicle 2WD
Top 32%
Better than 68 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 29 MPG
This vehicle
29 MPG
Class average
37 MPG
Class lowest
18 MPG
EPA Energy & Environment Scores
6
Energy Score
Out of 10
6
GHG Score
Out of 10
302 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine1.2L 3-cyl
TransmissionAutomatic (variable gear ratios)
DriveFront-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassSmall Sport Utility Vehicle 2WD
Engine DescSIDI
Start-StopYes
EPA Vehicle ID42521

29 MPG combined is a respectable accomplishment for the 2021 Buick Encore GX FWD 1.2L 3-cylinder. This isn’t a vehicle chasing ultimate efficiency; it’s about providing affordable, comfortable transportation with a touch of near-luxury feel. The Encore GX appeals to buyers who prioritize compact maneuverability and a slightly elevated driving position, not necessarily hyper-miling. These are often empty-nesters downsizing, or urban dwellers needing a practical vehicle for city navigation while still wanting occasional road trip capability.

City and highway performance

The EPA estimates the 2021 Buick Encore GX FWD with the 1.2L engine at 28 MPG in the city reflecting the engine’s efficient design even in stop-and-go situations. The automatic transmission, with its variable gear ratios, keeps the engine in its optimal power band for fuel efficiency. On the highway, it achieves 31 MPG. This reflects the aerodynamics of the Encore GX and the engine’s ability to cruise efficiently at consistent speeds. While 31 MPG on the highway isn’t class-leading, it’s adequate for long journeys. Drivers can realistically expect to match these ratings, especially with judicious use of the accelerator.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Buick Encore GX FWD 1.2L to be $1,500. This figure is based on driving 15,000 miles per year and using national average fuel prices. Naturally, your individual fuel costs may vary depending on your driving habits and local fuel prices. If you drive significantly more or less than 15,000 miles per year, or live in an area with substantially higher or lower gas prices, expect this number to shift accordingly.

Real-world expectations

While the EPA provides a standardized benchmark, real-world driving conditions significantly impact fuel economy. Factors like aggressive acceleration, frequent braking, carrying heavy loads, and driving in extreme weather can all reduce MPG. Owners who prioritize smooth, steady driving should find it relatively easy to at least match the EPA estimates. However, those with a heavier foot or primarily drive in congested urban areas may see figures closer to the lower end of the 20s. Take a look at ENCORE MPG across all years to get an idea of how past models have performed too.

How it compares

The fuel economy of the 2021 Buick Encore GX is competitive within its class, but some rivals offer slightly better or worse figures. For example, the Honda HR-V typically achieves around 28 MPG combined. The Mazda CX-30, known for its sporty driving dynamics, delivers approximately 28 MPG combined in its base front-wheel-drive configuration. The Nissan Kicks, a direct competitor, boasts a higher 31 MPG combined. These slight variances are important for buyers prioritizing fuel economy above all else. For those prioritizing a more premium feel and interior appointments, the Encore GX finds a comfortable middle ground. Be sure to see all Buick fuel economy data for more context.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The Encore GX’s 1.2L engine is most efficient when driven smoothly. Anticipate traffic flow and maintain a consistent speed whenever possible to minimize unnecessary fuel consumption. A gentle foot on the accelerator will pay dividends at the pump.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended specifications listed on the driver’s side doorjamb.

Reduce unnecessary weight in the vehicle. Extra cargo adds load to the engine, decreasing efficiency. Remove any items from the trunk or rear seats that aren’t essential for your daily driving. The lighter the vehicle, the less fuel it will consume.

Minimize idling. If you anticipate stopping for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, so excessive idling is simply wasting fuel.

Consider using cruise control on the highway. Cruise control helps maintain a consistent speed, preventing sudden acceleration or deceleration that can negatively impact fuel economy. Using cruise control on long highway drives can help you achieve or even exceed the EPA’s 31 MPG estimate.