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Cadillac STS MPG

MPG Number of Vehicles
20 miles per gallon 3 vehicles
21 miles per gallon 0 vehicles
22 miles per gallon 2 vehicles
23 miles per gallon 1 vehicles
Model Year Body/Powertrain MPG  
2008 2008 4dr Sedan 320-hp 4.6L V8 6-sp shiftable automatic AWD 20.05
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With the engine, transmission, and rear-wheel drive, the 2008 Cadillac STS has been averaging 20.05 MPG (miles per gallon).

The 2008 Cadillac STSs in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 90 percent of the miles driven). The rest of the miles were in the city (10 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2008 Cadillac STS in this analysis was driven on flat terrain with an ultra-light foot and the AC on only some of the time.
2008 2008 4dr Sedan 302-hp 3.6L V6 6-sp shiftable automatic RWD 21.75
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2008 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.