21 MPG combined won’t win any fuel efficiency awards, but for the 2020 Buick Enclave, it’s an acceptable trade-off for the space, comfort, and V6 power offered in this three-row SUV. This isn’t a vehicle for hypermilers; it’s built for families who want a smooth ride, a quiet cabin, and the ability to haul passengers and cargo in style.

City and highway performance

The EPA estimates for the front-wheel-drive 2020 Buick Enclave with the 3.6L V6 are 18 MPG in the city and 26 MPG on the highway. The city figure reflects the Enclave’s weight and the engine’s workload during frequent stops and starts. While 18 MPG might seem low, this is a large vehicle, often carrying multiple passengers and their belongings. The highway MPG of 26 is more respectable, showcasing the efficiency of the nine-speed automatic transmission when cruising at steady speeds. The transmission allows the engine to operate at lower RPMs, which helps conserve fuel on longer trips. The Enclave is chosen not for ultimate fuel efficiency, but for comfortable and quiet highway miles during long family road trips.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Buick Enclave FWD at $2,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. Remember that this is an estimate. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. If you primarily drive in the city, expect to exceed the $2,100 mark. However, if you do a lot of highway driving and practice fuel-efficient driving techniques, you may be able to keep your fuel costs closer to the EPA’s estimate. Always check current gas prices to get a clearer picture of what you’ll actually pay. You can also see ENCLAVE MPG across all years.

Real-world expectations

While the EPA provides a standardized estimate, real-world fuel economy for the 2020 Buick Enclave can vary. Aggressive driving habits, such as frequent acceleration and hard braking, will significantly reduce fuel economy. Carrying heavy loads or towing will also impact the numbers. Consider the time of year as well. Winter driving, especially in colder climates, can decrease your mileage due to the increased use of the heater, and winter tires, which add rolling resistance. Tire pressure and overall vehicle maintenance also contribute. Disciplined drivers who prioritize smooth acceleration and steady speeds can often achieve fuel economy figures that are close, or even slightly better, than the EPA estimates.

How it compares

Compared to other three-row SUVs in its class, the 2020 Buick Enclave’s fuel economy is generally similar. The Acura MDX, another commonly considered alternative, achieves roughly the same figures with its standard V6 engine. The Honda Pilot, similarly equipped, posts an EPA combined rating that’s very close to the Enclave. The Ford Explorer, particularly the EcoBoost four-cylinder version, may offer slightly better numbers in certain driving conditions, but doesn’t have the smooth power delivery of the Enclave’s V6. All-wheel-drive versions of these SUVs will see reduced fuel economy compared to their front-wheel-drive counterparts. For buyers weighing fuel efficiency, the Hyundai Palisade and Kia Telluride offer an alternative in some trims with slightly improved mileage, but this comes at the expense of some of the Buick’s premium feel. For a broader look at the brand, see all Buick fuel economy data.

Tips to maximize efficiency

Avoid aggressive acceleration. The Enclave’s 3.6L V6 provides ample power, so there’s no need to constantly floor the accelerator. Gentle acceleration will save fuel and reduce wear and tear on your tires and brakes.

Maintain proper tire inflation. Check your tire pressure regularly and ensure that your tires are inflated to the manufacturer’s recommended specifications. Underinflated tires increase rolling resistance, which reduces fuel economy.

Minimize idling. Avoid idling for extended periods, especially if the engine is already warmed up. Modern engines are designed to be efficient, even when restarting, so turning off the engine during waits of more than one minute is often more fuel-efficient than idling.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, which can improve fuel economy on long drives. Avoid using cruise control in hilly terrain, as the vehicle may downshift frequently, negating some fuel-saving benefits.

Service the vehicle regularly. Stay on top of routine maintenance, such as oil changes, air filter replacements, and spark plug replacements. A well-maintained engine runs more efficiently and can help improve fuel economy.