2017 GMC Terrain MPG and Fuel Cost

The 2017 GMC Terrain is rated 18 to 25 mpg combined across 5 EPA-tested gas versions; the best is the 2.4L 4-cyl · FWD · 6-speed automatic.

EPA fuel economy

2017 GMC Terrain · 5 EPA-tested versions

Best EPA rating

25MPG combined

21 city 31 highway

$2,600 a year to fuel

Fuel economy score5/10

2.4L 4-cyl · FWD · 6-speed automatic

Best version costs $1,500 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 $2,600 to $3,600 a year. Compared with 2016, the best gas version is down 1 mpg.

Every 2017 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
2.4L 4-cyl · FWD · 6-speed automatic Best EPA listing: Terrain FWD	25 mpg	21 / 31	$2,600
2.4L 4-cyl · FWD · 6-speed automatic · Flex-fuel (E85) EPA listing: Terrain FWD · Flex-fuel (E85)	25 mpg	21 / 31	$2,600
2.4L 4-cyl · AWD · 6-speed automatic EPA listing: Terrain AWD	23 mpg	20 / 28	$2,800
3.6L 6-cyl · FWD · 6-speed automatic EPA listing: Terrain FWD	20 mpg	17 / 24	$3,250
3.6L 6-cyl · AWD · 6-speed automatic EPA listing: Terrain AWD	18 mpg	16 / 23	$3,600

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
2.4L 4-cyl · FWD · 6-speed automatic	$2,592	$216	$12,960
2.4L 4-cyl · FWD · 6-speed automatic · Flex-fuel (E85)	$2,592	$216	$12,960
2.4L 4-cyl · AWD · 6-speed automatic	$2,817	$235	$14,087
3.6L 6-cyl · FWD · 6-speed automatic	$3,240	$270	$16,200
3.6L 6-cyl · AWD · 6-speed automatic	$3,600	$300	$18,000

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

2017: gas 25 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 2017 Terrain compares

2017 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.

2017 model	Best combined	Best gas	Fuel / year
Nissan Rogue Best: hybrid	34 mpg	29 mpg	$1,900
Toyota RAV4 Best: hybrid	32 mpg	26 mpg	$2,050
Honda CR-V Best: gas	30 mpg	30 mpg	$2,150
Hyundai Tucson Best: gas	28 mpg	28 mpg	$2,300
Subaru Outback Best: gas	28 mpg	28 mpg	$2,300
Subaru Forester Best: gas	28 mpg	28 mpg	$2,300
Mazda CX-5 Best: gas	27 mpg	27 mpg	$2,400
Ford Escape Best: gas	26 mpg	26 mpg	$2,500
Kia Sportage Best: gas	26 mpg	26 mpg	$2,500
Jeep Compass Best: gas	26 mpg	26 mpg	$2,500
Chevrolet Equinox Best: gas	25 mpg	25 mpg	$2,600
Jeep Cherokee Best: gas	25 mpg	25 mpg	$2,600
GMC Terrain This page Best: gas	25 mpg	25 mpg	$2,600
Volkswagen Tiguan Best: gas	22 mpg	22 mpg	$3,650

2017 Terrain recalls and complaints

NHTSA lists 1 safety recall and 133 owner complaints for the 2017 Terrain.What they cover, and crash test ratings

Questions

Does AWD lower the 2017 GMC Terrain's gas mileage?

Yes. On versions that differ only in drive, AWD lowers the combined rating by 2 mpg: the 2.4L 4-cyl gets 25 mpg combined with front-wheel drive and 23 with AWD.

Does the 2017 GMC Terrain need premium gas?

No. EPA lists every 2017 GMC Terrain version on regular gasoline.

How does the 2017 Terrain's MPG compare with the 2016?

For 2017, the best gas version is rated 25 mpg, down 1 from 26.

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.