Skip to content
GizmoDriver

2020 GMC Terrain mpg

Combined mpg, SL FWD

27mpg

Pick another car

12,000 miles a year. Gas $3.20.

101520253035Median 23Terrain: 27 mpg
130 SUVs (2020), one trim per model: the cheapest with a rating. Median 23 mpg.
2020 GMC Terrain mpg by trim
TrimEngineDriveCity mpgHwy mpgCombinedTank, galMiles per tankCost a year
SL FWD1.5L 4cylFWD26302714.9402$1,422
SLE FWD1.5L 4cylFWD26302714.9402$1,422
SLT FWD1.5L 4cylFWD26302714.9402$1,422
SLE AWD1.5LAWD25282615.6406$1,477
SLT AWD1.5LAWD25282615.6406$1,477
Denali FWD2.0LFWD22282414.9358$1,600
Denali AWD2.0L 4cylAWD21262315.6359$1,670

Fuel cost

SL FWD, 27 mpg combined.

Per year
$1,422
Per month
$119
Per mile
11.9 cents
Fill the tank
$47.68
  • Top trim: Denali AWD. $1,670 a year. $247 more than the SL FWD.

Trip cost

SL FWD: 30 mpg highway
TripGallonsCost
100 miles3.3$10.67
300 miles10.0$32.00
500 miles16.7$53.33
1,000 miles33.3$107

Commute cost

Per month
$103
Per year
$1,233
Miles a month
867

SL FWD. 20 miles each way, 5 days a week.

Is 27 mpg good? Yes. Beats 68% of 2026 cars.

MPG by year

252627282010201320162019202220252026
Terrain: combined mpg of the cheapest rated trim, 2010 to 2026.

Terrain by year: price, hp, mpg, size

Rivals

2020 GMC Terrain and rivals
CarCheapest trimCombined mpgCompare
2020 GMC TerrainSL FWD27 mpg
2020 Chevrolet EquinoxL FWD28 mpgCompare
2020 Volkswagen TiguanS FWD25 mpgCompare
2020 Mitsubishi OutlanderES 2WD27 mpgCompare
2020 Ford EscapeS FWD30 mpgCompare
2020 Honda CR-VLX 2WD30 mpgCompare
2020 Mazda CX-5Sport FWD28 mpg

What this cannot tell you

EPA ratings. Your own mpg will differ.

Gas prices change by state and by week.

How values are checked