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|2005||2005 4dr Minivan, ext. 185-hp 3.4L V6 4-sp automatic FWD||23.25||
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|With the engine, transmission, and rear-wheel drive, the 2005 Pontiac Montana SV6 has been averaging 23.25 MPG (miles per gallon).
The 2005 Pontiac Montana SV6s in this analysis were driven mostly on the highway at an average speed of 68 miles per hour (about 57.5 percent of the miles driven). The rest of the miles were in the city (10 percent), in heavy traffic (2.5 percent), and in the suburbs (0 percent).
In addition, the average 2005 Pontiac Montana SV6 in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.