AutoSpecData

GMC Terrain Annual Fuel Cost

Running a 2027 GMC Terrain costs about $2,200 per year in fuel, based on 15,000 miles of driving at average U.S. fuel prices.

Latest model year (2027):

The GMC Terrain costs an estimated $2,350/year in fuel (342 g CO₂/mi).

Verifiedfueleconomy.gov · Verified August 11, 2026
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GMC Terrain Fuel Cost — All Years

YearTrimEngineFuelMPG Comb.Annual CostCO₂ (g/mi)GHG Score
2027Config 1 of 3Auto 8-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline25$2,4503595
2027Config 2 of 3Auto 8-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503425
2027Config 3 of 3Auto 8-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline25$2,4503565
2026Config 1 of 3Auto (variable gear ratios), 4 cyl, 1.5 L4 1.5LRegular Gasoline27$2,3003295
2026Config 2 of 3Auto 8-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline25$2,4503565
2026Config 3 of 3Auto 8-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline25$2,4503585
2025Config 1 of 2Auto (variable gear ratios), 4 cyl, 1.5 L4 1.5LRegular Gasoline27$2,3003325
2025Config 2 of 2Auto 8-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline25$2,4503565
2024Config 1 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503425
2024Config 2 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline25$2,4503565
2023Config 1 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503475
2023Config 2 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503385
2022Config 1 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline27$2,3003306
2022Config 2 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503425
2021Config 1 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline27$2,3003296
2021Config 2 of 2Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503425
2020Config 1 of 4Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline27$2,3003256
2020Config 2 of 4Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503395
2020Config 3 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503505
2020Config 4 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline23$3,3003865
2019Config 1 of 6Auto 6-spd, 4 cyl, 1.6 L4 1.6LDiesel32$2,5003196
2019Config 2 of 6Auto 6-spd, 4 cyl, 1.6 L4 1.6LDiesel32$2,5003216
2019Config 3 of 6Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline28$2,2003176
2019Config 4 of 6Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503395
2019Config 5 of 6Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503695
2019Config 6 of 6Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline23$3,3003865
2018Config 1 of 6Auto 6-spd, 4 cyl, 1.6 L4 1.6LDiesel32$2,5003196
2018Config 2 of 6Auto 6-spd, 4 cyl, 1.6 L4 1.6LDiesel32$2,5003196
2018Config 3 of 6Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline26$2,3503395
2018Config 4 of 6Auto 9-spd, 4 cyl, 1.5 L4 1.5LRegular Gasoline28$2,2003166
2018Config 5 of 6Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503695
2018Config 6 of 6Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline23$3,3003865
2017Config 1 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline25$2,4503555
2017Config 2 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline23$2,6503815
2017Config 3 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline25$2,4503555
2017Config 4 of 5Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline20$3,1004444
2017Config 5 of 5Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline18$3,4004893
2016Config 1 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline26$2,3503476
2016Config 2 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline23$2,6503815
2016Config 3 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline26$2,3503476
2016Config 4 of 5Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline20$3,1004594
2016Config 5 of 5Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline18$3,4004824
2015Config 1 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline23$2,6503815
2015Config 2 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline26$2,3503476
2015Config 3 of 5Auto 6-spd, 4 cyl, 2.4 L4 2.4LRegular Gasoline26$2,3503476
2015Config 4 of 5Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline19$3,2504625
2015Config 5 of 5Auto 6-spd, 6 cyl, 3.6 L6 3.6LRegular Gasoline19$3,2504814

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 Terrain data analysis

How GMC Terrain estimated annual fuel cost varies

Across 47 configurations recorded for the 2015 through 2027 GMC Terrain, estimated annual fuel cost runs from $2,200 to $3,400. The strongest figure belongs to the 2019 GMC Terrain (Auto 9-spd, 4 cyl, 1.5 L) at $2,200, and the weakest to the 2016 car (Auto 6-spd, 6 cyl, 3.6 L) at $3,400 — a spread of 35%. 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 Terrain would be misleading.

What changed for 2027

Average estimated annual fuel cost for the 2027 GMC Terrain is $2,417, against $2,400 for the 2026 car — it rose by $17. Buyers who care most about this figure should look at the earlier model years in the table above before assuming newest is best.

How to read this GMC Terrain data

This page lists every 2015 through 2027 GMC Terrain record we hold for this measurement — 47 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 Terrain numbers

The 2015 through 2027 GMC Terrain entries here cover the variants Auto 8-spd, 4 cyl, 1.5 L, Auto (variable gear ratios), 4 cyl, 1.5 L, Auto 9-spd, 4 cyl, 1.5 L, Auto 9-spd, 4 cyl, 2.0 L, Auto 6-spd, 4 cyl, 1.6 L, Auto 6-spd, 4 cyl, 2.4 L and Auto 6-spd, 6 cyl, 3.6 L. 2019 is the busiest model year in the record with 6 separate measured configurations, which is why a single quoted estimated annual fuel cost 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 Terrain 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 Terrain 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.

Frequently Asked Questions About Terrain Fuel Cost

How much does it cost to fuel the GMC Terrain?

The estimated annual fuel cost for the GMC Terrain is $2,200 per year, based on 15,000 miles of driving and average fuel prices. Costs vary by trim and engine.

How much CO₂ does the GMC Terrain produce?

The GMC Terrain produces approximately 317 grams of CO₂ per mile. Lower numbers mean fewer emissions. See the table for per-trim details.

View full GMC Terrain specs

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