2021 GMC Sierra 2500 HD MPG
Based on data from 66 vehicles, 3,992 fuel-ups and 1,283,968 miles of driving, the 2021 GMC Sierra 2500 HD gets a combined Avg MPG of 13.16 with a 0.12 MPG margin of error.
Below you can see a distribution of the fuel-ups with 19 outliers (0.47%) removed.
Following shows the average MPG of each of the 66 vehicles in the system.
2021 GMC Sierra 2500 HDs For Sale Nearby
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My Sierra 2500 HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2020 • 11 Fuel-upsProperty of duraron
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13.4 Avg MPG
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GMC Sierra 2500 HD
2021 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Mar 2021 • 12 Fuel-upsProperty of 85burban
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11.7 Avg MPG
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AT4
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Feb 2021 • 44 Fuel-upsProperty of powell1983
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12.9 Avg MPG
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Terry’s Sierra 2500 HD
2021 GMC Sierra 2500 HD SLT 6.6L V8 GAS Automatic 10 Speed
Added Mar 2021 • 7 Fuel-upsProperty of DragonKat
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14.7 Avg MPG
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Blacky
2021 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Feb 2021 • 4 Fuel-upsProperty of OhioDuramaX
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16.5 Avg MPG
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My Sierra 2500 HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Nov 2020 • 7 Fuel-upsProperty of stanjod
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13.9 Avg MPG