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Model Year Body/Powertrain MPG  
2009 2009 4dr SUV 285-hp 4.2L I6 4-sp automatic RWD 17
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With the 285-horsepower 4.2L I6 engine, 4-speed automatic transmission, and rear-wheel drive, the 2009 GMC Envoy has been averaging 17 MPG (miles per gallon).

The 2009 GMC Envoys in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 30 percent of the miles driven). The rest of the miles were in the city (30 percent), in heavy traffic (10 percent), and in the suburbs (0 percent).

In addition, the average 2009 GMC Envoy in this analysis was driven on flat terrain with a medium foot and the AC not used at all.

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2009 GMC Envoy 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 GMC Envoy's real-world MPG based on how and where you drive a car.