STS 2WD
Rear-Wheel Drive · Automatic (S5) · Midsize Cars
- MPG combined
- 18
- City / highway
- 16 / 23
- Engine
- 3.6L 6-cyl
- Fuel
- Regular
- Annual fuel cost
- $3,700
- Tailpipe CO₂
- 494 g/mi
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World Of EVEditorial
Cadillac STS
The Cadillac STS has been sold in the US from 2005 to 2011, in 7 model years covered here. The 2011 line-up has 2 trims with 21 MPG combined.
Model years
2005 STS trims (3)
STS 2WD
Rear-Wheel Drive · Automatic (S5) · Midsize Cars
- MPG combined
- 18
- City / highway
- 15 / 23
- Engine
- 4.6L 8-cyl
- Fuel
- Premium
- Annual fuel cost
- $4,550
- Tailpipe CO₂
- 494 g/mi
STS AWD
4-Wheel or All-Wheel Drive · Automatic (S5) · Midsize Cars
- MPG combined
- 17
- City / highway
- 14 / 21
- Engine
- 4.6L 8-cyl
- Fuel
- Premium
- Annual fuel cost
- $4,850
- Tailpipe CO₂
- 523 g/mi
Source: U.S. EPA / DOE fueleconomy.gov. Annual fuel cost is the EPA estimate for 15,000 miles a year at national average fuel and electricity prices.