2015 GMC Sierra MPG
Based on data from 21 vehicles, 2,940 fuel-ups and 842,663 miles of driving, the 2015 GMC Sierra gets a combined Avg MPG of 16.57 with a 0.12 MPG margin of error.
Below you can see a distribution of the fuel-ups with 233 outliers (7.34%) removed.
Following shows the average MPG of each of the 21 vehicles in the system.
2015 GMC Sierras For Sale Nearby
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Sierra
2015 GMC Sierra All Terrain 5.3L V8 GAS Automatic 6 Speed
Added Mar 2017 • 62 Fuel-upsProperty of elisepol
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17.6 Avg MPG
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