GMC
Sierra K15 AWD
U.S. fuel economy and specifications from the EPA.
14Best combined MPG2008 model year
2008–2013Model years6 with EPA ratings
6Rated configurationsDrive, transmission and engine
6.2 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2008 14 MPG
2009 14 MPG
2010 14 MPG
2011 14 MPG
2012 14 MPG
2013 14 MPG
1 configuration.
All-Wheel Drive · Automatic 6-spd
Regular gasoline or E85 · Standard Pickup Trucks 4WD
- Combined MPG on regular gasoline
- 14
- Combined MPG on E85
- 11
- Engine displacement
- 6.2 L
- Cylinders
- 8
4-Wheel Drive · Automatic 6-spd
Regular gasoline or E85 · Standard Pickup Trucks 4WD
- Combined MPG on regular gasoline
- 14
- Combined MPG on E85
- 11
- Engine displacement
- 6.2 L
- Cylinders
- 8
All-Wheel Drive · Automatic 6-spd
Regular gasoline or E85 · Standard Pickup Trucks 4WD
- Combined MPG on regular gasoline
- 14
- Combined MPG on E85
- 11
- Engine displacement
- 6.2 L
- Cylinders
- 8
All-Wheel Drive · Automatic 6-spd
Regular gasoline or E85 · Standard Pickup Trucks 4WD
- Combined MPG on regular gasoline
- 14
- Combined MPG on E85
- 11
- Engine displacement
- 6.2 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic 6-spd
Regular gasoline or E85 · Standard Pickup Trucks 4WD
- Combined MPG on regular gasoline
- 14
- Combined MPG on E85
- 11
- Engine displacement
- 6.2 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic 6-spd
Premium gasoline · Standard Pickup Trucks 4WD
- Combined MPG
- 14
- Engine displacement
- 6.2 L
- Cylinders
- 8