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Cadillac STS Fuel Economy (L/100km)

L/100km Number of Vehicles
9 liters per 100 kilometers 2 vehicles
10 liters per 100 kilometers 2 vehicles
11 liters per 100 kilometers 3 vehicles
12 liters per 100 kilometers 1 vehicles
13 liters per 100 kilometers 4 vehicles
14 liters per 100 kilometers 0 vehicles
15 liters per 100 kilometers 0 vehicles
16 liters per 100 kilometers 1 vehicles
17 liters per 100 kilometers 1 vehicles
Model Year Body/Powertrain L/100km  
2006 2006 4dr Sedan 254-hp 3.6L V6 5-sp shiftable automatic AWD 12.4
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With the 225 kilowatts 3.6L V6 engine, 6-speed shiftable automatic transmission, and all-wheel drive, the 2006 Cadillac STS has been averaging 12.4 L/100km (liters per 100 kilometers).

The 2006 Cadillac STSs in this analysis were driven mostly in the city (about 45 percent of the kilometers driven). The rest of the kilometers were on the highway at an average speed of 60 kilometers per hour (20 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2006 Cadillac STS in this analysis was driven on flat terrain with a light foot and the AC not used at all.
2006 2006 4dr Sedan 320-hp 4.6L V8 6-sp shiftable automatic RWD 9.6
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2006 2006 4dr Sedan 302-hp 3.6L V6 6-sp shiftable automatic RWD 12.18
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What Our Members Are Saying about the Real Gas Mileage of the 2006 Cadillac STS

2006 Cadillac STS Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 16 city/21 highway. Buy it only if you can afford it with out complaining. see full Cadillac STS review
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 This car is thirsty. I live in flat country and I get 15 mpg with 80% highway traffic. I only get 19 mpg on trips. It probably needs a 6th speed overdive for the highway. see full Cadillac STS review
 

2006 Cadillac STS Gas Mileage (L/100km)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Cadillac STS's real-world L/100km based on how and where you drive a car.