2015 GMC Sierra 1500 MPG
Based on data from 207 vehicles, 21,104 fuel-ups and 6,160,139 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.78 with a 0.05 MPG margin of error.
Below you can see a distribution of the fuel-ups with 635 outliers (2.92%) removed.
Following shows the average MPG of each of the 207 vehicles in the system.
2015 GMC Sierra 1500s For Sale Nearby
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Truck
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Jan 2023 • 3 Fuel-upsProperty of fernwoodnation
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13.4 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 • 292 Fuel-upsProperty of dustin8201
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14.8 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 • 350 Fuel-upsProperty of jarrett85
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15.3 Avg MPG
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Da Kon
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Sep 2021 • 68 Fuel-upsProperty of Tclechner
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16.2 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2021 • 39 Fuel-upsProperty of kyleiowa
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15.9 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Sep 2019 • 246 Fuel-upsProperty of CaptAbrahamSmollett
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15.2 Avg MPG
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Sierra
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Apr 2018 • 329 Fuel-upsProperty of ssirik
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14.7 Avg MPG
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Silver Surfer
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Apr 2016 • 335 Fuel-upsProperty of humenfly
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17.7 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 • 98 Fuel-upsProperty of Chuck16785
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17.2 Avg MPG
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Team Blue (Truck)
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jan 2022 • 119 Fuel-upsProperty of TeamBlue
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16.1 Avg MPG
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GMC Sierra Denali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Aug 2016 • 345 Fuel-upsProperty of mnetland
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18.6 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed
Added Jul 2020 • 32 Fuel-upsProperty of jc5570
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15.6 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 • 272 Fuel-upsProperty of dbowman711
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15.8 Avg MPG
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BlueFishDogTooth III
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added May 2019 • 118 Fuel-upsProperty of dennisp2938
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12.5 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Jan 2018 • 313 Fuel-upsProperty of Karels
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17.1 Avg MPG
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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 • 212 Fuel-upsProperty of eddykc03
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15.5 Avg MPG
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Truck
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Oct 2018 • 201 Fuel-upsProperty of kbreyette
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15.2 Avg MPG
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Sierra All Terrain
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jul 2015 • 213 Fuel-upsProperty of Gilles
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17.2 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Oct 2020 • 33 Fuel-upsProperty of Selway
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16.8 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 • 508 Fuel-upsProperty of CStreff
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18.1 Avg MPG