petrol
4 photos from Wikimedia Commons · credits & licences
- 1. 07 STS V: Leonard R Williams· Public domain
- 2. 08 Cadillac STS V8: HJUdall· CC0
- 3. 2005 Cadillac STS V6 in Blue Chip, Front Left, 10-30-2022: Elise240SX· CC BY-SA 4.0
- 4. 2005 Cadillac STS V8, front left, 09-11-2022: MercurySable99· CC BY-SA 4.0
what the fuel types mean
- petrol Cheapest to buy, simple, but fuel is expensive in NL.
spec sheet
- built
- 2006–2009
- body
- —
- engine
- 4.4 L
- cylinders
- 8
- turbo
- some versions
- power
- —
- drive
- rear-wheel drive
- gearbox
- automatic
- seats
- —
- doors
- —
- weight
- —
- fuel use
- —
- CO₂
- —
- US rating
- 14–15 mpg
- EV range
- —
- US size class
- Midsize Cars
- avg new price NL
- —
Ranges cover every version ever sold. Blank means the sources don't say.
🇺🇸 US versions (4)
Every version the EPA tested, model years 2006–2009. mpg is combined; L/100 km converted.
| year | version | engine | gearbox | drive | fuel | mpg | L/100 |
|---|---|---|---|---|---|---|---|
| 2009 | STS-V | 4.4 L 8 cyl SC | Automatic (S6) | RWD | Premium | 15 | 15.7 |
| 2008 | STS-V | 4.4 L 8 cyl SC | Automatic (S6) | RWD | Premium | 15 | 15.7 |
| 2007 | STS-V | 4.4 L 8 cyl SC | Automatic (S6) | RWD | Premium | 15 | 15.7 |
| 2006 | STS-V | 4.4 L 8 cyl SC | Automatic (S6) | RWD | Premium | 14 | 16.8 |
Sources: fueleconomy.gov.Updated 2026-10-24.