Owning a 2015 Buick Enclave AWD with the 3.6L V6 means you’ll get 18 MPG combined. Let’s be clear; nobody buys this SUV for its fuel efficiency. They buy it for its spacious three-row seating, comfortable ride, ample cargo room, and reputation as a family-friendly hauler capable of tackling inclement weather. Fuel economy is a calculated compromise, a cost for accessing the Enclave’s core strengths.

City and highway performance

The EPA estimates the 2015 Enclave AWD at 16 MPG in the city and 22 MPG on the highway. The city figure reflects the burden of hauling nearly 5,000 pounds through stop-and-go traffic, where the V6 engine must work harder to overcome inertia. The highway number is slightly more palatable, suggesting that consistent cruising speeds allow the Enclave to stretch a gallon a bit further. However, remember that a fully loaded Enclave packed with passengers and gear will likely see highway MPG closer to the city figures.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Buick Enclave AWD at $2,450. This figure is based on driving 15,000 miles per year and using gasoline prices prevalent at the time of testing. This is merely an estimate. Your actual fuel costs will fluctuate depending on your driving habits, the type of roads you frequent, and the ever-changing price of gasoline in your region. Still, the $2,450 figure provides helpful context for comparing the Enclave’s running costs to other vehicles in its class, or perhaps factoring in the added expense and deciding if this vehicle meets your specific needs.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy can vary significantly. Aggressive driving, frequent short trips, and consistent use of the Enclave’s all-wheel-drive system will all negatively impact your MPG. Owners who prioritize smooth acceleration, anticipate traffic flow, and minimize idling can expect to get closer to the EPA estimates. Tire pressure and proper maintenance also play a role in getting the most from each gallon of gasoline.

How it compares

The 2015 Enclave’s fuel economy places it squarely in the middle of its competitive set. The Acura MDX SH-AWD, for example, offers a slightly better 21 MPG combined; this is likely a consideration for drivers concerned with fuel expenses. The Infiniti QX60, known for its luxury and comfort, achieves around 21 MPG combined in its AWD configuration too. The Ford Explorer with its 3.5L V6 and available AWD lands around 19 MPG, depending on the specific trim, coming closer to the Enclave. For those who absolutely require a three-row SUV but want superior fuel economy, a hybrid alternative should be considered. Before making any decision, drivers may want to review all Buick fuel economy data and ENCLAVE MPG across all years to make an informed choice.

Tips to maximize efficiency

Use the Enclave’s cruise control on long highway stretches. Consistent speed reduces unnecessary acceleration and braking, leading to improved fuel efficiency. The transmission will seek out the highest gear possible, keeping the engine RPMs low.

Be mindful of your acceleration. The 3.6L V6 delivers ample power, but aggressive acceleration consumes fuel quickly. Aim for smooth, gradual acceleration, especially from a standstill, to minimize fuel wastage. Avoid hard launches; a smoother start will save you fuel.

Ensure your tires are properly inflated and regularly rotated. Underinflated tires increase rolling resistance, forcing the engine to work harder and burn more fuel. Check your tire pressure monthly and follow the manufacturer’s recommendations, typically found on a sticker inside the driver’s side door jamb.

Minimize idling time. If you anticipate being stopped for more than a minute, turn off the engine. Idling consumes fuel without moving the vehicle. A small amount of fuel is wasted to keep the engine running.

Reduce unnecessary weight. The Enclave is a large vehicle, and every extra pound adds to the engine’s workload. Remove items you don’t need, such as sporting equipment or tools, to lighten the load and improve fuel economy. The more weight you carry, the more fuel you burn.