24 MPG combined is an acceptable figure for the 2018 Buick Envision AWD 2.5L 4-cyl, though not class-leading. This vehicle isn’t chasing hybrid efficiency; it’s a comfortable, well-equipped crossover aimed at buyers who prioritize a smooth ride and quiet cabin over saving fuel. Consider it getting respectable mileage in a stylish and practical package.

City and highway performance

The Envision’s EPA estimates are 21 MPG in the city and 27 MPG on the highway. The city figure reflects stop-and-go driving, where the 2.5L engine works harder to accelerate the Envision’s weight. The highway number is more appealing, suggesting the Envision settles into a more efficient cruising speed on long trips. Drivers who spend a lot of time in urban environments should focus more on that 21 MPG estimate, while those who frequently commute or take road trips can reasonably expect to see numbers closer to 27 MPG. The 6-speed automatic transmission helps keep the engine in its sweet spot, but it’s not the most modern or efficient setup available.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2018 Buick Envision AWD 2.5L 4-cyl is $1,800. This figure is based on driving 15,000 miles per year and using the national average fuel prices at the time of calculation. Individual costs will vary depending on driving habits, local fuel prices, and the type of fuel used. While $1,800 might seem high compared to a hybrid, it’s a reasonable expense for a crossover in this segment, especially one with all-wheel drive. This is merely an estimate, and your real-world expenditure could be higher or lower.

Real-world expectations

While the EPA provides a standardized testing procedure, real-world fuel economy often differs. Several factors influence how efficiently you’ll drive your Envision. Driving style, load, weather conditions, and even tire pressure can affect your MPG. Aggressive acceleration and hard braking reduce fuel economy significantly. Carrying heavy loads, such as passengers or cargo, also forces the engine to work harder.

Headwinds and cold temperatures can further reduce efficiency. Keeping your tires properly inflated and performing regular maintenance, such as oil changes and air filter replacements, will help maximize your Envision’s fuel economy.

How it compares

Compared to its competitors, the 2018 Buick Envision AWD 2.5L falls mid-pack in terms of fuel economy. For example, the Acura RDX with its standard V6 engine achieves around 22 MPG combined, prioritizing power over pure efficiency. The Lexus NX 300h hybrid, on the other hand, boasts an impressive 31 MPG combined, attracting buyers focused on saving fuel. The Honda CR-V with its available 1.5L turbo engine manages around 30 MPG combined in its front-wheel drive configuration, a significant improvement. The Nissan Rogue offers around 29 MPG combined. The buyer interested in an Envision likely isn’t cross-shopping a hybrid. They’ve accepted a certain level of fuel consumption in exchange for the Buick’s blend of comfort, features, and styling.

For all Buick fuel economy data, see our brand overview. You can also find ENVISION MPG across all years on our dedicated model page.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The Envision’s 2.5L engine responds best to smooth inputs. Anticipate traffic flow and maintain a steady speed whenever possible. A lighter foot on the accelerator will directly improve fuel economy.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside your driver’s side door. This simple step can noticeably improve your MPG.

Minimize idling. Idling consumes fuel without moving the vehicle. If you anticipate being stopped for more than a minute or two, turn off the engine. Restarting the engine consumes less fuel than idling for extended periods, especially with modern fuel-injection systems.

Reduce unnecessary weight. Extra weight reduces fuel economy, so remove any unnecessary items from your vehicle. Clear out the trunk and backseat of any items you don’t need. Even small reductions in weight can contribute to improved MPG over time.

Consider your driving mode (if equipped). Some Envision models offer selectable driving modes, such as “Eco” or “Touring.” Use these modes when appropriate because they often adjust engine and transmission settings to prioritize fuel efficiency. These modes may reduce throttle response and shift points, but they can help you save fuel on long trips.