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|2005||2005 4dr Sedan 290-hp 4.6L V8 4-sp automatic FWD||24.5||
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|With the 291-horsepower 4.6L V8 engine, 4-speed automatic transmission, and front-wheel drive, the 2005 Cadillac DeVille has been averaging 24.5 MPG (miles per gallon).
The 2005 Cadillac DeVilles in this analysis were driven mostly on the highway at an average speed of 65 miles per hour (about 75 percent of the miles driven). The rest of the miles were in the suburbs (0 percent), in the city (0 percent), and in heavy traffic (0 percent).
In addition, the average 2005 Cadillac DeVille in this analysis was driven on flat terrain with an ultra-light foot and the AC not used at all.