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Cadillac STS MPG

MPG Number of Vehicles
14 miles per gallon 1 vehicles
15 miles per gallon 1 vehicles
16 miles per gallon 0 vehicles
17 miles per gallon 0 vehicles
18 miles per gallon 2 vehicles
19 miles per gallon 3 vehicles
20 miles per gallon 0 vehicles
21 miles per gallon 2 vehicles
22 miles per gallon 1 vehicles
23 miles per gallon 0 vehicles
24 miles per gallon 1 vehicles
25 miles per gallon 2 vehicles
26 miles per gallon 1 vehicles
Model Year Body/Powertrain MPG  
2006 2006 4dr Sedan 254-hp 3.6L V6 5-sp shiftable automatic AWD 19
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With the 302-horsepower 3.6L V6 engine, 6-speed shiftable automatic transmission, and all-wheel drive, the 2006 Cadillac STS has been averaging 19 MPG (miles per gallon).

The 2006 Cadillac STSs in this analysis were driven mostly in the city (about 45 percent of the miles driven). The rest of the miles were on the highway at an average speed of 60 miles 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 24.5
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2006 2006 4dr Sedan 302-hp 3.6L V6 6-sp shiftable automatic RWD 20
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See TrueDelta's information for all Sedans
See TrueDelta's information for all Cadillac models.

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 (MPG)

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 MPG based on how and where you drive a car.