GMC
Sierra 1500 AWD
U.S. fuel economy and specifications from the EPA.
13Best combined MPG2004 model year
2004–2006Model years3 with EPA ratings
3Rated configurationsDrive, transmission and engine
6 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2004 13 MPG
2005 13 MPG
2006 13 MPG
1 configuration.
4-Wheel or All-Wheel Drive · Automatic 4-spd
Premium gasoline · Standard Pickup Trucks 4WD
- Combined MPG
- 13
- Engine displacement
- 6.0 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic 4-spd
Regular gasoline · Standard Pickup Trucks 4WD
- Combined MPG
- 13
- Engine displacement
- 6.0 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic 4-spd
Regular gasoline · Standard Pickup Trucks 4WD
- Combined MPG
- 13
- Engine displacement
- 6.0 L
- Cylinders
- 8