2015 GMC Sierra 1500 MPG
Based on data from 220 vehicles, 23,770 fuel-ups and 6,918,587 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.76 with a 0.04 MPG margin of error.
Below you can see a distribution of the fuel-ups with 1527 outliers (6.04%) removed.
Following shows the average MPG of each of the 220 vehicles in the system.
2015 GMC Sierra 1500s For Sale Nearby
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GMC Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Extended Cab Pickup
Added Aug 2017 • 261 Fuel-upsProperty of eddykc03
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15.4 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Jan 2018 • 489 Fuel-upsProperty of Karels
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16.8 Avg MPG
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Sierra All Terrain
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jul 2015 • 258 Fuel-upsProperty of Gilles
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17.2 Avg MPG
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GMC 1500 SLT
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Oct 2019 • 244 Fuel-upsProperty of slatejoh
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14.4 Avg MPG
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Denali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Mar 2017 • 286 Fuel-upsProperty of giro
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15.1 Avg MPG
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GMC Sierra Denali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Aug 2016 • 425 Fuel-upsProperty of mnetland
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18.5 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2021 • 112 Fuel-upsProperty of kyleiowa
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16.0 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Sep 2019 • 371 Fuel-upsProperty of CaptAbrahamSmollett
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15.2 Avg MPG
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2015 GMC Sierra Crew Cab
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Oct 2016 • 374 Fuel-upsProperty of dbowman711
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15.7 Avg MPG
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BlueFishDogTooth III
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added May 2019 • 214 Fuel-upsProperty of dennisp2938
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13.3 Avg MPG
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Team Blue (Truck)
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jan 2022 • 216 Fuel-upsProperty of TeamBlue
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15.4 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Aug 2018 • 388 Fuel-upsProperty of dustin8201
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14.5 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 6 Speed
Added May 2018 • 93 Fuel-upsProperty of arcasey1989
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13.7 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Jan 2023 • 81 Fuel-upsProperty of kblunt
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15.8 Avg MPG
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My GMC 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Jun 2017 • 301 Fuel-upsProperty of bjsgasdata
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16.1 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2023 • 81 Fuel-upsProperty of Hetelle
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15.2 Avg MPG
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2015 GMC
2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Sep 2016 • 313 Fuel-upsProperty of bluez06
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15.1 Avg MPG
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GMC
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Jul 2021 • 438 Fuel-upsProperty of jarrett85
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15.2 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Oct 2015 • 117 Fuel-upsProperty of Clemsonfan15
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16.0 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Aug 2023 • 125 Fuel-upsProperty of Nholley
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17.8 Avg MPG