2015 GMC Sierra 1500 MPG
Based on data from 215 vehicles, 22,982 fuel-ups and 6,661,240 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.71 with a 0.04 MPG margin of error.
Below you can see a distribution of the fuel-ups with 718 outliers (3.03%) removed.
Following shows the average MPG of each of the 215 vehicles in the system.
2015 GMC Sierra 1500s For Sale Nearby
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Oct 2022 • 57 Fuel-upsProperty of beckstein1964
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14.7 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 • 205 Fuel-upsProperty of slatejoh
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14.4 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2021 • 77 Fuel-upsProperty of kyleiowa
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15.7 Avg MPG
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GMC
2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jun 2017 • 294 Fuel-upsProperty of dfrazier
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15.9 Avg MPG
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Team Blue (Truck)
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jan 2022 • 184 Fuel-upsProperty of TeamBlue
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15.8 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Jan 2018 • 425 Fuel-upsProperty of Karels
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16.6 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 6 Speed
Added May 2018 • 75 Fuel-upsProperty of arcasey1989
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13.8 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Jan 2023 • 36 Fuel-upsProperty of kblunt
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15.6 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Aug 2023 • 99 Fuel-upsProperty of Nholley
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17.7 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 • 266 Fuel-upsProperty of bjsgasdata
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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 • 324 Fuel-upsProperty of CaptAbrahamSmollett
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15.2 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2017 • 435 Fuel-upsProperty of CurtK
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16.5 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2023 • 55 Fuel-upsProperty of Hetelle
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15.3 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 • 399 Fuel-upsProperty of jarrett85
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15.3 Avg MPG
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Gmc
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Mar 2017 • 277 Fuel-upsProperty of StanIROCZ
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16.4 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 • 357 Fuel-upsProperty of dustin8201
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14.4 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 • 161 Fuel-upsProperty of Chuck16785
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17.1 Avg MPG
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Sierra
2015 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
Added Oct 2017 • 231 Fuel-upsProperty of rguerrer93
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16.0 Avg MPG
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BlueFishDogTooth III
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added May 2019 • 170 Fuel-upsProperty of dennisp2938
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12.7 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 • 245 Fuel-upsProperty of eddykc03
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15.4 Avg MPG