2015 GMC Sierra 2500 HD MPG
Based on data from 115 vehicles, 10,260 fuel-ups and 3,349,302 miles of driving, the 2015 GMC Sierra 2500 HD gets a combined Avg MPG of 13.13 with a 0.07 MPG margin of error.
Below you can see a distribution of the fuel-ups with 140 outliers (1.35%) removed.
Following shows the average MPG of each of the 115 vehicles in the system.
2015 GMC Sierra 2500 HDs For Sale Nearby
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added May 2021 • 253 Fuel-upsProperty of rjkaoud
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12.3 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Dec 2021 • 140 Fuel-upsProperty of cibalibeb
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12.6 Avg MPG
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GMC Sierra 2500 HD
2015 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
Added Sep 2017 • 470 Fuel-upsProperty of artywoof
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9.4 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Dec 2017 • 405 Fuel-upsProperty of DuramaxPoke
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14.2 Avg MPG
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My Truck
2015 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Mar 2020 • 539 Fuel-upsProperty of MikeJ135
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14.1 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
Added Jun 2024 • 13 Fuel-upsProperty of HOMEslice93
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17.6 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jun 2020 • 80 Fuel-upsProperty of ackerman12
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14.1 Avg MPG
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Denali
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added May 2018 • 366 Fuel-upsProperty of KTBHDH
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12.1 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added May 2019 • 295 Fuel-upsProperty of dave012
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13.7 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD 6.6L V8 DIESEL Automatic 6 Speed
Added May 2024 • 20 Fuel-upsProperty of chadlamb185
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14.4 Avg MPG
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GMC Sierra
2015 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
Added Nov 2019 • 110 Fuel-upsProperty of ethanranft
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11.6 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jun 2021 • 73 Fuel-upsProperty of rookiefire14
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14.4 Avg MPG
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El Caballo Negro
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Sep 2020 • 123 Fuel-upsProperty of jpvilches86
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17.4 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Mar 2019 • 306 Fuel-upsProperty of alibarle
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14.7 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jul 2018 • 186 Fuel-upsProperty of hunter9312
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16.5 Avg MPG
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Big Blue
2015 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added May 2014 • 130 Fuel-upsProperty of fightenfire
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15.9 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD SLE 6.0L V8 FLEX Automatic 6 Speed
Added May 2018 • 45 Fuel-upsProperty of sexterra23
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10.7 Avg MPG
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Truck
2015 GMC Sierra 2500 HD SLE 6.0L V8 GAS Automatic 6 Speed
Added Mar 2019 • 252 Fuel-upsProperty of Chartley04
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11.3 Avg MPG
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My Sierra 2500 HD
2015 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
Added Aug 2019 • 99 Fuel-upsProperty of k1llswitch
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13.6 Avg MPG
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GMC Truck
2015 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
Added Mar 2017 • 201 Fuel-upsProperty of thevinman2
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9.9 Avg MPG