2023 GMC Terrain MPG and Fuel Cost

The 2023 GMC Terrain is rated 26 mpg combined in every gas version EPA tested.

EPA fuel economy

2023 GMC Terrain · 2 EPA-tested versions

Best EPA rating

26MPG combined

24 city 28 highway

$2,500 a year to fuel

Fuel economy score5/10

1.5L turbo 4-cyl · AWD · 9-speed automatic

Best version costs $1,000 more in fuel over 5 years vs the average new vehicle (EPA)

Fuel cost: 15,000 miles a year at EPA's $4.32 a gallon (regular gas).

Data: US EPA, fueleconomy.govUpdated Sep 28, 2026

At EPA's price assumptions, fuel costs about $2,500 a year. Compared with 2022, the best gas version is down 1 mpg.

Every 2023 Terrain version

EPA's ratings for each version it tested. Fuel cost is EPA's estimate for 15,000 miles a year at its current prices.

Version	Combined	City / Hwy	Fuel / year
1.5L turbo 4-cyl · AWD · 9-speed automatic Best EPA listing: Terrain AWD	26 mpg	24 / 28	$2,500
1.5L turbo 4-cyl · FWD · 9-speed automatic EPA listing: Terrain FWD	26 mpg	24 / 29	$2,500

Fuel cost at your prices

EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.32 a gallon for regular gas. Change the numbers to match your driving.

Version	Per year	Per month	5 years
1.5L turbo 4-cyl · AWD · 9-speed automatic	$2,492	$208	$12,462
1.5L turbo 4-cyl · FWD · 9-speed automatic	$2,492	$208	$12,462

At the default settings the results match EPA's annual cost before EPA rounds it to the nearest $50.

GMC Terrain MPG by model year

The best-rated version in each model year; the highlighted year is this page. Gas: 25 to 28 mpg (every year from 2016 to 2026); highest in 2018. Diesel: 32 mpg (2018 to 2019).

Best gas version
Best diesel version

2023: gas 26 mpg · diesel not offered

Show as a table

GMC Terrain best combined mpg by model year
Model year	Best gas version	Best diesel version
2016	26	–
2017	25	–
2018	28	32
2019	28	32
2020	27	–
2021	27	–
2022	27	–
2023	26	–
2024	26	–
2025	27	–
2026	27	–

How the 2023 Terrain compares

2023 compact SUVs covered on this site, ranked by their best combined rating. Fuel cost is for each model's cheapest version to run, at EPA's prices.

2023 model	Best combined	Best gas	Fuel / year
Kia Sportage Best: hybrid	43 mpg	28 mpg	$1,500
Toyota RAV4 Best: hybrid	40 mpg	30 mpg	$1,600
Honda CR-V Best: hybrid	40 mpg	30 mpg	$1,600
Ford Escape Best: hybrid	39 mpg	30 mpg	$1,650
Hyundai Tucson Best: hybrid	38 mpg	28 mpg	$1,700
Nissan Rogue Best: gas	33 mpg	33 mpg	$1,950
Subaru Forester Best: gas	29 mpg	29 mpg	$2,250
Chevrolet Equinox Best: gas	28 mpg	28 mpg	$2,300
Subaru Outback Best: gas	28 mpg	28 mpg	$2,300
Jeep Compass Best: gas	27 mpg	27 mpg	$2,400
Volkswagen Tiguan Best: gas	27 mpg	27 mpg	$2,400
Mazda CX-50 Best: gas	27 mpg	27 mpg	$2,400
Mazda CX-5 Best: gas	26 mpg	26 mpg	$2,500
Ford Bronco Sport Best: gas	26 mpg	26 mpg	$2,500
GMC Terrain This page Best: gas	26 mpg	26 mpg	$2,500
Jeep Cherokee Best: gas	24 mpg	24 mpg	$2,700

2023 Terrain recalls and complaints

NHTSA lists 2 safety recalls and 39 owner complaints for the 2023 Terrain.What they cover, and crash test ratings

Questions

Does AWD lower the 2023 GMC Terrain's gas mileage?

No. Versions that differ only in drive share the same combined rating: the 1.5L turbo 4-cyl gets 26 mpg combined with front-wheel drive and 26 with AWD.

Does the 2023 GMC Terrain need premium gas?

No. EPA lists every 2023 GMC Terrain version on regular gasoline.

How does the 2023 Terrain's MPG compare with the 2022?

For 2023, the best gas version is rated 26 mpg, down 1 from 27.

Sources and method

US EPA and Department of Energy fuel economy data (fueleconomy.gov), file dated Sep 18, 2026.
EPA fuel price assumptions: regular $4.32, midgrade $4.93, premium $5.32, diesel $6.29 a gallon; electricity $0.15 per kWh.
Recall and complaint counts: NHTSA recall file dated Sep 29, 2026 and complaint file dated Sep 28, 2026.

Ratings are EPA estimates. Real-world mileage depends on how, where and in what weather you drive. How we build these pages. Spotted an error? Tell us.