2020 GMC Sierra 2500 HD MPG
Based on data from 45 vehicles, 2,882 fuel-ups and 1,063,979 miles of driving, the 2020 GMC Sierra 2500 HD gets a combined Avg MPG of 14.31 with a 0.13 MPG margin of error.
Below you can see a distribution of the fuel-ups with 26 outliers (0.89%) removed.
Following shows the average MPG of each of the 45 vehicles in the system.
2020 GMC Sierra 2500 HDs For Sale Nearby
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Granite AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Oct 2020 • 160 Fuel-upsProperty of NHATC
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11.2 Avg MPG
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Neil GMC 2500HD
2020 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Nov 2020 • 224 Fuel-upsProperty of neilalvares
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13.5 Avg MPG
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My Sierra 2500 HD
2020 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 6 Speed
Added Mar 2022 • 141 Fuel-upsProperty of hoodsh
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14.2 Avg MPG
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My Sierra 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Aug 2022 • 57 Fuel-upsProperty of jeepin13
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14.6 Avg MPG
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Sierra 2500 HD
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Feb 2024 • 12 Fuel-upsProperty of tdbreeding
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12.6 Avg MPG
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Pimpin AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Aug 2023 • 14 Fuel-upsProperty of cdizzle
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13.5 Avg MPG
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2020 Dmax
2020 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Apr 2024 • 4 Fuel-upsProperty of Bigboydmax
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13.8 Avg MPG
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My Sierra 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Aug 2023 • 27 Fuel-upsProperty of rlsudlow
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14.5 Avg MPG
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COVID Cruiser
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2020 • 208 Fuel-upsProperty of jambiefsj
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16.8 Avg MPG
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Sierra 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2020 • 73 Fuel-upsProperty of bto71
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14.3 Avg MPG
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Gallo Negro
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added May 2022 • 19 Fuel-upsProperty of doakman1
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10.1 Avg MPG
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AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Jul 2022 • 87 Fuel-upsProperty of Dziuky
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17.0 Avg MPG
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2020 Denali 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Jun 2020 • 133 Fuel-upsProperty of maaiman
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16.0 Avg MPG
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GMC AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Jun 2022 • 69 Fuel-upsProperty of furlofoder
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13.5 Avg MPG
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No Greater Love
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Nov 2021 • 15 Fuel-upsProperty of mattjames11
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11.7 Avg MPG
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2020 Sierra 2500 Duramax
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Dec 2019 • 253 Fuel-upsProperty of mnoland2000
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13.0 Avg MPG
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My Denali 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2022 • 8 Fuel-upsProperty of fasdon
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10.8 Avg MPG
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Duramax
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added May 2021 • 97 Fuel-upsProperty of Silentfun65
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14.5 Avg MPG
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‘Nali
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Jul 2023 • 39 Fuel-upsProperty of raulserrano
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17.8 Avg MPG
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My Sierra 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Jan 2020 • 100 Fuel-upsProperty of zardoz5
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14.6 Avg MPG