2018 GMC Sierra C15 2WD
Vehicle specifications and fuel economy data from EPA/DOE
Combined MPG
20
City MPG
18
Highway MPG
24
Fuel Type
Gasoline or E85
Annual Fuel Cost
$2,200
CO2 (g/mi)
448
Vehicle Details
- Year
- 2018
- Make
- GMC
- Model
- Sierra C15 2WD
- Vehicle Class
- Standard Pickup Trucks 2WD
- Engine
- 6 cylinders, 4.3L
- Transmission
- Automatic 6-spd
- Drive
- Rear-Wheel Drive
- Fuel Type
- Gasoline or E85
All Trims
| Trim | City | Highway | Combined | Fuel | Engine | Transmission |
|---|---|---|---|---|---|---|
| Auto 6-spd, 6 cyl, 4.3 L, SIDI; FFV | 18 | 24 | 20 | Gasoline or E85 | 6 cyl 4.3L | Automatic 6-spd |
| Auto 6-spd, 8 cyl, 5.3 L, SIDI | 16 | 23 | 19 | Regular | 8 cyl 5.3L | Automatic 6-spd |
| Auto 6-spd, 8 cyl, 5.3 L, SIDI; FFV | 16 | 23 | 19 | Gasoline or E85 | 8 cyl 5.3L | Automatic 6-spd |
| Auto 8-spd, 8 cyl, 5.3 L, SIDI | 16 | 22 | 18 | Regular | 8 cyl 5.3L | Automatic 8-spd |
| Auto 8-spd, 8 cyl, 6.2 L, SIDI | 15 | 21 | 17 | Premium | 8 cyl 6.2L | Automatic 8-spd |
Other Years
About This Data
Fuel economy data from the U.S. Department of Energy and EPA fueleconomy.gov. MPG estimates are based on standardized EPA test procedures. Actual mileage may vary based on driving conditions, habits, and vehicle maintenance. Annual fuel cost estimates are based on 15,000 miles driven per year at current fuel prices.
What is combined MPG?
Combined MPG is a weighted average of city (55%) and highway (45%) fuel economy. It represents typical mixed driving conditions.
What is MPGe?
MPGe (miles per gallon equivalent) is used for electric and plug-in hybrid vehicles. It represents the distance a vehicle can travel on the same amount of energy as one gallon of gasoline (33.7 kWh).