2015 GMC Sierra 3500 HD MPG
Based on data from 46 vehicles, 3,946 fuel-ups and 1,428,110 miles of driving, the 2015 GMC Sierra 3500 HD gets a combined Avg MPG of 13.57 with a 0.13 MPG margin of error.
Below you can see a distribution of the fuel-ups with 64 outliers (1.60%) removed.
Following shows the average MPG of each of the 46 vehicles in the system.
2015 GMC Sierra 3500 HDs For Sale Nearby
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2015 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Apr 2018 • 166 Fuel-upsProperty of tbelllis1963
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15.4 Avg MPG
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Nali
2015 GMC Sierra 3500 HD Denali 6.0L V8 CNG Automatic 6 Speed
Added Jul 2023 • 48 Fuel-upsProperty of Sober-Tony
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12.0 Avg MPG
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Denali
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Aug 2023 • 607 Fuel-upsProperty of Brucelas
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10.9 Avg MPG
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Denali
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Oct 2022 • 56 Fuel-upsProperty of dek781
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16.1 Avg MPG
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R2D2
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added May 2021 • 74 Fuel-upsProperty of Klass7
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12.5 Avg MPG
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Big Spud
2015 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Feb 2024 • 9 Fuel-upsProperty of tiffanykorn
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15.9 Avg MPG
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2015 3500 Sierra
2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added May 2019 • 111 Fuel-upsProperty of NJFF41
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14.5 Avg MPG
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GMC Sierra 3500 HD
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Jun 2022 • 78 Fuel-upsProperty of nascardreamin
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13.0 Avg MPG
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2015 GMC 3500HD
2015 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
Added Aug 2023 • 37 Fuel-upsProperty of kenaxcix
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12.9 Avg MPG
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Sierra 3500 HD
2015 GMC Sierra 3500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Mar 2018 • 181 Fuel-upsProperty of Crash
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14.3 Avg MPG
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Sierra 3500 HD
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Mar 2023 • 64 Fuel-upsProperty of Tx_Rebel
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12.7 Avg MPG
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My Sierra 3500 HD
2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Dec 2021 • 42 Fuel-upsProperty of RJenkins
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15.6 Avg MPG
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GMC Sierra 3500 HD
2015 GMC Sierra 3500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
Added Dec 2018 • 99 Fuel-upsProperty of CAPaul
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12.4 Avg MPG
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My Sierra 3500 HD
2015 GMC Sierra 3500 HD 6.0L V8 GAS Automatic 6 Speed
Added Sep 2019 • 100 Fuel-upsProperty of jjj4x4
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9.2 Avg MPG
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My Sierra 3500 HD
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Mar 2023 • 15 Fuel-upsProperty of 1500HD
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14.0 Avg MPG
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GMC Hd
2015 GMC Sierra 3500 HD 6.6L V8 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
Added Oct 2018 • 416 Fuel-upsProperty of dflores81
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13.7 Avg MPG
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Little Red Wagon
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Feb 2018 • 321 Fuel-upsProperty of ANK01
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15.1 Avg MPG
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Sierra 3500HD
2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Apr 2021 • 113 Fuel-upsProperty of abonini
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15.0 Avg MPG
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My Sierra 3500 HD
2015 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Dec 2021 • 40 Fuel-upsProperty of crashper
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14.9 Avg MPG
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My Sierra 3500 HD
2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added May 2021 • 28 Fuel-upsProperty of fatalberts
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10.7 Avg MPG