The 2018 Buick Enclave AWD with its 3.6L V6 is EPA rated for 20 MPG combined. While this might not sound impressive on its own, it’s important to understand what the Enclave is: a comfortable, spacious, and relatively affordable three-row SUV designed to haul families and their belongings. For buyers prioritizing those attributes, the Enclave offers a good package, even if fuel savings aren’t a priority.

City and highway performance

The EPA estimates the Enclave’s fuel economy at 17 MPG in the city and 25 MPG on the highway. This split highlights the V6 engine’s thirst in stop-and-go conditions, which is also affected by the Enclave’s weight. The 9-speed automatic transmission helps to optimize fuel efficiency on the open road, allowing the engine to cruise at lower RPMs and contributing to that 25 MPG highway figure.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Buick Enclave AWD at $2,200. This is based on driving 15,000 miles per year, using national average fuel prices. This is just an estimate; your actual fuel costs will vary depending on your driving habits, the type of roads you typically drive on, and local fuel prices. The $2,200 figure gives potential buyers a key data point to consider when budgeting for vehicle ownership.

Real-world expectations

The EPA provides a standardized testing methodology, but real-world fuel economy often deviates from these numbers. Aggressive acceleration, carrying heavy loads, and prolonged idling can all negatively impact the Enclave’s MPG. Cold weather can also reduce fuel economy. Some owners who consistently drive with a gentle foot and prioritize highway cruising may find themselves achieving numbers closer to the EPA estimates, while others who frequently encounter city traffic or drive aggressively should anticipate lower figures. Visit ENCLAVE MPG across all years to see owner reported MPG data.

How it compares

The 2018 Buick Enclave is in a crowded segment of three-row SUVs, each with its own fuel economy. The Honda Pilot, a popular choice, achieves a combined 22 MPG in its AWD configuration. The Toyota Highlander manages 23 MPG combined with its V6 engine and AWD, making it a slightly more fuel-efficient option. The Ford Explorer with its 2.3L EcoBoost offers a more impressive 24 MPG combined, showing the difference even a smaller turbocharged engine can make. Buyers considering the Enclave are often drawn to its more premium feel and styling, a trade-off they may be willing to make despite the slightly lower fuel economy compared to these competitors. For a wider view, check all Buick fuel economy data.

Tips to maximize efficiency

The 3.6L V6 in the Enclave responds well to a smooth driving style. Avoid harsh acceleration and braking, and anticipate traffic flow to minimize unnecessary speed changes. This will ensure that you don’t unduly penalize fuel consumption.

Tire pressure is important for fuel efficiency. Regularly check your tires and maintain the recommended pressure, which can be found on a sticker located on the driver’s side doorjamb. Underinflated tires increase rolling resistance, leading to a noticeable drop in MPG.

Minimize idling. If you anticipate being stopped for more than a minute, turn off the engine. Excessive idling consumes fuel without contributing to actual distance traveled. This is important in city driving where stop lights and traffic jams are frequent.

Reduce the weight you carry in the Enclave. Removing unnecessary items from the cargo area and passenger compartment can lighten the vehicle’s load, improving fuel economy. Extra weight forces the engine to work harder, burning more fuel.