2027 GMC Terrain Denali/AT4 MPG
EPA-rated · verified snapshot 2026-08-30 · Small Sport Utility Vehicle 4WD
The 2027 GMC Terrain Denali/AT4 gets 25 MPG combined — 24 city and 26 highway — in its most efficient configuration (1.5L · 4-cyl · Automatic 8-spd · All-Wheel Drive).
City24 MPG
Highway26 MPG
$2,450Fuel cost / yr (EPA est.)
359 g/miCO₂
RegularFuel
$-1,2505-yr fuel cost vs. average vehicle
5 / 10EPA Fuel Economy & GHG score
30 ft³Cargo volume
104 ft³Passenger volume
Where it sits among compact suvs (2027)
FAQ
Is 25 MPG good for a compact suvs like the 2027 Terrain Denali/AT4?
The 2027 Terrain Denali/AT4's 25 MPG combined is below the compact suvs average of 55.5 MPG for 2027.
How much does it cost to fuel a 2027 Terrain Denali/AT4 per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $2,450 for the most efficient trim.
What is the city and highway MPG of the 2027 Terrain Denali/AT4?
The most efficient trim is rated 24 MPG city and 26 MPG highway.