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GMC Acadia Fuel Economy (MPG)

What is the real-world gas mileage of a 2027 GMC Acadia?

The 2027 GMC Acadia gets up to 25 MPG combined (22 city / 29 highway) in EPA testing.

Latest model year (2027):

The GMC Acadia gets up to 22 MPG combined (20 city / 26 highway) in the Auto 8-spd, 4 cyl, 2.5 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
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GMC Acadia MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2027Config 1 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline202622
2027Config 2 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline202321
2026Config 1 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline202321
2026Config 2 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline202622
2025Config 1 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline192421
2025Config 2 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline202723
2024Config 1 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline202723
2024Config 2 of 2Auto 8-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline192421
2023Config 1 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline222925
2023Config 2 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline222724
2023Config 3 of 4Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192722
2023Config 4 of 4Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2022Config 1 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline222925
2022Config 2 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline222724
2022Config 3 of 4Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192722
2022Config 4 of 4Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2021Config 1 of 5Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline222724
2021Config 2 of 5Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline222925
2021Config 3 of 5Auto 9-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212723
2021Config 4 of 5Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192722
2021Config 5 of 5Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192621
2020Config 1 of 5Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline212723
2020Config 2 of 5Auto 9-spd, 4 cyl, 2.0 L4 2.0LRegular Gasoline212824
2020Config 3 of 5Auto 9-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212723
2020Config 4 of 5Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline192722
2020Config 5 of 5Auto 9-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2019Config 1 of 4Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212522
2019Config 2 of 4Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212623
2019Config 3 of 4Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2019Config 4 of 4Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline172520
2018Config 1 of 4Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212623
2018Config 2 of 4Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212523
2018Config 3 of 4Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2018Config 4 of 4Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline172520
2017Config 1 of 6Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212523
2017Config 2 of 6Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline212623
2017Config 3 of 6Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline182520
2017Config 4 of 6Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline152218
2017Config 5 of 6Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline152217
2017Config 6 of 6Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline182521
2016Config 1 of 2Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline152218
2016Config 2 of 2Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline152217
2015Config 1 of 2Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline172419
2015Config 2 of 2Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline162319

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

GMC Acadia data analysis

How GMC Acadia combined fuel economy varies

Across 44 configurations recorded for the 2015 through 2027 GMC Acadia, combined fuel economy runs from 17 MPG to 25 MPG. The strongest figure belongs to the 2021 GMC Acadia (Auto 9-spd, 4 cyl, 2.0 L) at 25 MPG, and the weakest to the 2017 car (Auto 6-spd, 6 cyl, 3.6 L) at 17 MPG — a spread of 47%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the GMC Acadia would be misleading.

What changed for 2027

Average combined fuel economy for the 2027 GMC Acadia is 21.5 MPG, against 21.5 MPG for the 2026 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this GMC Acadia data

This page lists every 2015 through 2027 GMC Acadia record we hold for this measurement — 44 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these GMC Acadia numbers

The 2015 through 2027 GMC Acadia entries here cover the variants Auto 8-spd, 4 cyl, 2.5 L, Auto 9-spd, 4 cyl, 2.0 L, Auto 9-spd, 6 cyl, 3.6 L, Auto 9-spd, 4 cyl, 2.5 L, Auto 6-spd, 4 cyl, 2.5 L and Auto 6-spd, 6 cyl, 3.6 L. 2017 is the busiest model year in the record with 6 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these GMC Acadia figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The GMC Acadia record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speedEPA highway specAutoSpecData adjusted MPGFuel you lose
60 mph29 MPG29 MPG0%
65 mph29 MPG26.5 MPG9%
70 mph29 MPG24.2 MPG17%
75 mph29 MPG22.1 MPG24%
80 mph29 MPG20.3 MPG30%

Our Real-World Speed MPG Adjuster re-scales the GMC Acadia EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About Acadia MPG

What is the MPG of the GMC Acadia?

The GMC Acadia gets up to 25 MPG combined (22 city / 29 highway) in the 2027 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which GMC Acadia trim has the best fuel economy?

The Auto 9-spd, 4 cyl, 2.0 L trim offers the best combined fuel economy at 25 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

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