GMC · 2020
Acadia AWD 3.6L 6-cyl
✓ EPA Verified
Regular Gasoline
Standard Sport Utility Vehicle 4WD
All-Wheel Drive
City
18
MPG
Combined
21
MPG
Highway
25
MPG
Annual Fuel Cost
$2,100
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$50
saved per year
Class Comparison — Standard Sport Utility Vehicle 4WD
Top 40%
Better than 60 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 21 MPG
This vehicle
21 MPG
Class average
27 MPG
Class lowest
11 MPG
EPA Energy & Environment Scores
4
Energy Score
Out of 10
4
GHG Score
Out of 10
433 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine3.6L 6-cyl
TransmissionAutomatic 9-spd
DriveAll-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassStandard Sport Utility Vehicle 4WD
Engine DescSIDI
Start-StopYes
EPA Vehicle ID41881

The 2020 GMC Acadia AWD equipped with the 3.6L V6 has an EPA fuel economy rating of 21 MPG combined. While not class-leading, that number is acceptable for the Acadia: a comfortable, well-equipped, and capable three-row SUV designed primarily for suburban family use. Acadia buyers prioritize space, safety features, and a smooth ride over outright fuel efficiency, understanding that these features come with a moderate compromise at the pump.

City and highway performance

The EPA further breaks down the Acadia’s fuel economy, estimating 18 MPG in the city and 25 MPG on the highway. The city figure reflects the stop-and-go driving inherent in urban environments, where the Acadia’s weight and size become more noticeable. The 25 MPG highway rating shows the benefits of the Acadia’s nine-speed automatic transmission, which allows the engine to cruise at lower RPMs, maximizing fuel efficiency on longer trips. These figures are realistic for drivers who regularly encounter a mix of driving conditions. The AWD system extracts a small penalty compared to the FWD variant, but for buyers in colder climates, the added all-weather capability is highly valued.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 GMC Acadia AWD 3.6L to be $2,100. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Remember that this is only an estimate. Your actual fuel costs may vary significantly depending on your driving habits, the type of fuel you use, and local fuel prices. Aggressive acceleration, frequent short trips, and neglecting routine maintenance can all negatively impact your real-world fuel expenses. While $2,100 is a benchmark, consider it a best-case scenario for a typical Acadia owner.

Real-world expectations

While the EPA provides a standardized rating, real-world MPG often differs. Expect to see figures fluctuate based on driving style, load, and terrain. Drivers who predominantly drive on the highway might see numbers closer to or even slightly above the 25 MPG rating, especially if they employ a smooth, consistent driving style. City dwellers who frequently encounter traffic jams and short trips are more likely to see their average MPG dip below the 18 MPG estimate. The key is to drive conscientiously and avoid aggressive acceleration and braking to maintain optimal fuel efficiency. Hauling cargo or passengers regularly will also impact mileage.

How it compares

The 2020 GMC Acadia’s fuel economy sits roughly in the middle of its competitive set. The Honda Pilot, for example, achieves a slightly better EPA rating of 22 MPG combined for its AWD variants. The Toyota Highlander, another popular choice, achieves 23 MPG combined in AWD guise with its V6 engine, and significantly better with its hybrid options. The Ford Explorer, depending on the engine and drive configuration, can fall slightly below the Acadia’s ratings, especially on models equipped with the more powerful EcoBoost engines.

For those browsing ACADIA MPG across all years, it’s important to weigh fuel economy against other factors like interior space, towing capacity, and available features. The Acadia strikes a balance that appeals to many buyers, even if it isn’t the outright leader in fuel efficiency. Shoppers can quickly compare all Gmc fuel economy data to see how it stacks up within the brand as well.

Tips to maximize efficiency

Gentle acceleration is key to saving fuel in any vehicle, but especially in a heavier SUV like the Acadia. Avoid “jackrabbit” starts and try to anticipate traffic flow to maintain a steady speed. The Acadia’s nine-speed transmission is designed to optimize fuel economy, but aggressive driving negates its benefits.

Proper tire inflation is crucial. Check your tire pressure regularly and inflate them to the manufacturer’s recommended PSI, which can be found on a sticker inside the driver’s side doorjamb. Underinflated tires create more rolling resistance, which reduces fuel efficiency.

Reduce unnecessary weight. The more weight you carry in your Acadia, the harder the engine has to work, and the more fuel you’ll consume. Remove any items you don’t need from the cargo area and passenger seats. Even small amounts of extra weight can add up over time.

Consider using cruise control on the highway. This helps maintain a consistent speed and prevents unintentional speed fluctuations, which can waste fuel. However, be mindful of traffic conditions and disengage cruise control when necessary for safety.

Regular maintenance is essential for optimal fuel economy. Ensure that your Acadia receives regular oil changes, air filter replacements, and tune-ups as recommended in the owner’s manual. A well-maintained engine runs more efficiently and consumes less fuel.