2015 GMC Sierra 1500 MPG
Based on data from 206 vehicles, 20,219 fuel-ups and 5,917,860 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.80 with a 0.05 MPG margin of error.
Below you can see a distribution of the fuel-ups with 614 outliers (2.95%) removed.
Following shows the average MPG of each of the 206 vehicles in the system.
2015 GMC Sierra 1500s For Sale Nearby
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Joey's GMC
2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Sep 2016 • 215 Fuel-upsProperty of Shakora
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13.9 Avg MPG
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GMC Sierra Denali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Aug 2016 • 315 Fuel-upsProperty of mnetland
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18.6 Avg MPG
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2015 GMC Sierra 1500 SLT
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Dec 2018 • 243 Fuel-upsProperty of mnvik28
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14.5 Avg MPG
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Da Kon
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Sep 2021 • 45 Fuel-upsProperty of Tclechner
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16.7 Avg MPG
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GMC Truck
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added May 2020 • 73 Fuel-upsProperty of Chuck16785
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17.1 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 • 328 Fuel-upsProperty of jarrett85
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15.4 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 • 240 Fuel-upsProperty of dbowman711
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15.7 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Sep 2019 • 211 Fuel-upsProperty of CaptAbrahamSmollett
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15.4 Avg MPG
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Sierra
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Nov 2018 • 482 Fuel-upsProperty of CStreff
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18.1 Avg MPG
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Team Blue (Truck)
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jan 2022 • 59 Fuel-upsProperty of TeamBlue
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16.2 Avg MPG
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Ali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
Added Sep 2021 • 21 Fuel-upsProperty of WPro
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16.4 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 • 109 Fuel-upsProperty of slatejoh
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16.3 Avg MPG
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Corys 2015 Seirra
2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Sep 2016 • 251 Fuel-upsProperty of MrFastcars
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14.1 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 • 257 Fuel-upsProperty of dustin8201
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14.7 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Jan 2018 • 275 Fuel-upsProperty of Karels
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17.0 Avg MPG
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Little Blue
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Mar 2022 • 26 Fuel-upsProperty of psm11911
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16.3 Avg MPG
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GMC 1500 Crew
2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Mar 2019 • 117 Fuel-upsProperty of wingbase
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12.4 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2017 • 343 Fuel-upsProperty of CurtK
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16.6 Avg MPG
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Sierra All Terrain
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jul 2015 • 194 Fuel-upsProperty of Gilles
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17.4 Avg MPG
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BlueFishDogTooth III
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added May 2019 • 101 Fuel-upsProperty of dennisp2938
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12.7 Avg MPG