2012 GMC Sierra MPG
Based on data from 20 vehicles, 3,133 fuel-ups and 840,257 miles of driving, the 2012 GMC Sierra gets a combined Avg MPG of 13.74 with a 0.11 MPG margin of error.
Below you can see a distribution of the fuel-ups with 93 outliers (2.88%) removed.
Following shows the average MPG of each of the 20 vehicles in the system.
2012 GMC Sierras For Sale Nearby
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Denali
2012 GMC Sierra Denali 6.2L V8 FLEX Automatic 6 Speed
Added Oct 2016 • 593 Fuel-upsProperty of bmhlondon
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13.6 Avg MPG
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Sierra
2012 GMC Sierra Denali 6.2L V8 GAS Automatic 6 Speed
Added Mar 2017 • 736 Fuel-upsProperty of panther5232
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12.7 Avg MPG
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GMC truck
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Aug 2016 • 343 Fuel-upsProperty of recoutts
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17.7 Avg MPG
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Sierra
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Sep 2016 • 353 Fuel-upsProperty of mmlipps
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16.5 Avg MPG
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2012 GMC Truck
2012 GMC Sierra Denali 6.2L V8 FLEX Automatic 6 Speed
Added Mar 2017 • 357 Fuel-upsProperty of xdiehard04x
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12.5 Avg MPG
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Doye
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Aug 2016 • 133 Fuel-upsProperty of pkking
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16.4 Avg MPG
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Sold Net's GMC 2012 truck
2012 GMC Sierra 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2017 • 22 Fuel-upsProperty of redrover58
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17.9 Avg MPG
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SAWYER
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Mar 2019 • 6 Fuel-upsProperty of ChumLeeAFM
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18.5 Avg MPG
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My Sierra
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Jul 2017 • 46 Fuel-upsProperty of justinschopp
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15.7 Avg MPG
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Gmc sierra farm fuel
2012 GMC Sierra Denali 6.2L V8 GAS Automatic 6 Speed
Added Mar 2017 • 263 Fuel-upsProperty of sask
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12.3 Avg MPG
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Scott's Truck
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Mar 2017 • 206 Fuel-upsProperty of scargis
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17.4 Avg MPG
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My Sierra
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Jan 2018 • 7 Fuel-upsProperty of Donnab11257
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15.5 Avg MPG
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GMC Sierra
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Aug 2016 • 145 Fuel-upsProperty of 2012GMCLL
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18.9 Avg MPG
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Lyle
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Mar 2017 • 180 Fuel-upsProperty of LyleO
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14.3 Avg MPG
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Blue Bird
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Mar 2017 • 61 Fuel-upsProperty of jlewis
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11.7 Avg MPG
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2012 GMC Sierra 1500
2012 GMC Sierra Denali 6.2L V8 GAS Automatic 6 Speed
Added Mar 2017 • 21 Fuel-upsProperty of sask
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13.9 Avg MPG
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My Sierra
2012 GMC Sierra 5.3L GAS V8 Automatic 6
Added Jun 2015 • 7 Fuel-upsProperty of Norgaards1
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13.7 Avg MPG
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Sierra
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Apr 2017 • 32 Fuel-upsProperty of Canper_Bob
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14.0 Avg MPG
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COBRA
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Jun 2020 • 8 Fuel-upsProperty of jake8702
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13.5 Avg MPG
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Sierra
2012 GMC Sierra 5.3L V8 GAS Automatic 6 Speed
Added Mar 2018 • 15 Fuel-upsProperty of bbrinks81
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17.3 Avg MPG