Cadillac
STS AWD
U.S. fuel economy and specifications from the EPA.
21Best combined MPG2010 model year
2005–2011Model years7 with EPA ratings
11Rated configurationsDrive, transmission and engine
3.6–4.6 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2005 17 MPG
2006 18 MPG
2007 18 MPG
2008 20 MPG
2009 20 MPG
2010 21 MPG
2011 21 MPG
1 configuration.
All-Wheel Drive · Automatic (S6)
Regular gasoline · Midsize Cars
- Combined MPG
- 21
- Engine displacement
- 3.6 L
- Cylinders
- 6
All-Wheel Drive · Automatic (S6)
Regular gasoline · Midsize Cars
- Combined MPG
- 21
- Engine displacement
- 3.6 L
- Cylinders
- 6
All-Wheel Drive · Automatic (S6)
Regular gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.6 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic (S6)
Regular gasoline · Midsize Cars
- Combined MPG
- 20
- Engine displacement
- 3.6 L
- Cylinders
- 6
4-Wheel or All-Wheel Drive · Automatic (S6)
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.6 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic (S6)
Regular gasoline · Midsize Cars
- Combined MPG
- 20
- Engine displacement
- 3.6 L
- Cylinders
- 6
4-Wheel or All-Wheel Drive · Automatic (S6)
Premium gasoline · Midsize Cars
- Combined MPG
- 16
- Engine displacement
- 4.6 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic (S5)
Regular gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 3.6 L
- Cylinders
- 6
4-Wheel or All-Wheel Drive · Automatic (S5)
Regular gasoline · Midsize Cars
- Combined MPG
- 18
- Engine displacement
- 3.6 L
- Cylinders
- 6
4-Wheel or All-Wheel Drive · Automatic (S5)
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.6 L
- Cylinders
- 8
4-Wheel or All-Wheel Drive · Automatic (S5)
Premium gasoline · Midsize Cars
- Combined MPG
- 17
- Engine displacement
- 4.6 L
- Cylinders
- 8