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Cadillac STS Fuel Economy (km/L)

km/L Number of Vehicles
6 kilometers per liter 1 vehicles
7 kilometers per liter 0 vehicles
8 kilometers per liter 0 vehicles
9 kilometers per liter 0 vehicles
10 kilometers per liter 0 vehicles
11 kilometers per liter 0 vehicles
12 kilometers per liter 0 vehicles
13 kilometers per liter 0 vehicles
14 kilometers per liter 0 vehicles
15 kilometers per liter 0 vehicles
16 kilometers per liter 0 vehicles
17 kilometers per liter 0 vehicles
18 kilometers per liter 0 vehicles
19 kilometers per liter 0 vehicles
20 kilometers per liter 0 vehicles
21 kilometers per liter 0 vehicles
22 kilometers per liter 0 vehicles
23 kilometers per liter 0 vehicles
24 kilometers per liter 0 vehicles
25 kilometers per liter 0 vehicles
26 kilometers per liter 0 vehicles
27 kilometers per liter 0 vehicles
28 kilometers per liter 0 vehicles
29 kilometers per liter 0 vehicles
30 kilometers per liter 0 vehicles
31 kilometers per liter 0 vehicles
32 kilometers per liter 0 vehicles
33 kilometers per liter 0 vehicles
34 kilometers per liter 0 vehicles
35 kilometers per liter 0 vehicles
36 kilometers per liter 1 vehicles
37 kilometers per liter 0 vehicles
38 kilometers per liter 0 vehicles
39 kilometers per liter 0 vehicles
40 kilometers per liter 0 vehicles
41 kilometers per liter 0 vehicles
42 kilometers per liter 0 vehicles
43 kilometers per liter 0 vehicles
44 kilometers per liter 0 vehicles
45 kilometers per liter 1 vehicles
46 kilometers per liter 0 vehicles
47 kilometers per liter 1 vehicles
48 kilometers per liter 0 vehicles
49 kilometers per liter 1 vehicles
50 kilometers per liter 0 vehicles
51 kilometers per liter 0 vehicles
52 kilometers per liter 0 vehicles
53 kilometers per liter 1 vehicles
Model Year Body/Powertrain km/L  
2005 2005 4dr Sedan 320-hp 4.6L V8 6-sp shiftable automatic AWD 21.01
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With the engine, transmission, and rear-wheel drive, the 2005 Cadillac STS has been averaging 21.01 L/100km (liters per 100 kilometers).

The 2005 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 85 kilometers per hour (40 percent), in heavy traffic (10 percent), and in the suburbs (0 percent).

In addition, the average 2005 Cadillac STS in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.
2005 2005 4dr Sedan 320-hp 4.6L V8 6-sp shiftable automatic RWD 48.27
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2005 2005 4dr Sedan 302-hp 3.6L V6 6-sp shiftable automatic RWD 49.4
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What Our Members Are Saying about the Real Gas Mileage of the 2005 Cadillac STS

2005 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
 

2005 Cadillac STS Gas Mileage (km/L)

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 km/L based on how and where you drive a car.