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|2005||2005 4dr Sedan 255-hp 3.0L V6 6-sp shiftable automatic FWD||24.23||
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|With the 255-horsepower 3.0L V6 engine, 6-speed shiftable automatic transmission, and front-wheel drive, the 2005 Buick LaCrosse has been averaging 24.23 MPG (miles per gallon).
The 2005 Buick LaCrosses in this analysis were driven mostly on the highway at an average speed of 100 miles per hour (about 51.3 percent of the miles driven). The rest of the miles were in the city (33.8 percent), in heavy traffic (5 percent), and in the suburbs (0 percent).
In addition, the average 2005 Buick LaCrosse in this analysis was driven on flat terrain with a medium foot and the AC not used at all.