Chevrolet Blazer vs GMC Terrain
The Chevrolet Blazer is the more efficient of the two: it reaches 104 mpg combined versus 32 mpg for the GMC Terrain, a 72 mpg advantage and costs about $1,450 less per year to fuel.
Across 5 measured categories, the Chevrolet Blazer leads in 4. Figures are EPA test data, not manufacturer claims.
2019–2027
Chevrolet Blazer
Small Sport Utility Vehicle 2WD · 48 configurations
2015–2027
GMC Terrain
Small Sport Utility Vehicle 2WD · 47 configurations
Head-to-head specifications
| Metric | Chevrolet Blazer | GMC Terrain |
|---|---|---|
| Best combined MPG | 104 mpg ✓ | 32 mpg |
| Best city MPG | 114 mpg ✓ | 28 mpg |
| Best highway MPG | 95 mpg ✓ | 39 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $750 ✓ | $2,200 |
| Lowest CO2 output | 349 g/mi | 316 g/mi ✓ |
| Engines offered | SIDI | SIDI, 1.6, SIDI; FFV |
| Transmissions | Automatic (A1), Automatic 9-spd, Automatic (S9) | Automatic 8-spd, Automatic (variable gear ratios), Automatic 9-spd |
| Drivetrains | Front-Wheel Drive, All-Wheel Drive, Rear-Wheel Drive | All-Wheel Drive, Front-Wheel Drive |
| Fuel types | Electricity, Regular | Regular, Premium, Diesel |
| EPA class | Small Sport Utility Vehicle 2WD | Small Sport Utility Vehicle 2WD |
| Years covered | 2019–2027 | 2015–2027 |
| Configurations on record | 48 | 47 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Blazer vs Terrain: common questions
Which is better on gas, the Chevrolet Blazer or the GMC Terrain?
The Chevrolet Blazer is the more efficient of the two: it reaches 104 mpg combined versus 32 mpg for the GMC Terrain, a 72 mpg advantage and costs about $1,450 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Chevrolet Blazer runs about $750 a year in fuel at its most efficient configuration, versus about $2,200 for the GMC Terrain — a difference of roughly $1,450 per year.
What engines do the Blazer and Terrain offer?
Chevrolet Blazer: SIDI. GMC Terrain: SIDI, 1.6, SIDI; FFV.
Are they in the same vehicle class?
Yes — the EPA classifies both the Chevrolet Blazer and the GMC Terrain as Small Sport Utility Vehicle 2WD, so they compete directly.
More Blazer comparisons
Comparison id: chevrolet-blazer-vs-gmc-terrain