2020 GMC Sierra 2500 HD MPG
Based on data from 48 vehicles, 3,215 fuel-ups and 1,185,346 miles of driving, the 2020 GMC Sierra 2500 HD gets a combined Avg MPG of 14.26 with a 0.12 MPG margin of error.
Below you can see a distribution of the fuel-ups with 29 outliers (0.89%) removed.
Following shows the average MPG of each of the 48 vehicles in the system.
2020 GMC Sierra 2500 HDs For Sale Nearby
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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 • 276 Fuel-upsProperty of neilalvares
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13.4 Avg MPG
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GMC AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Jun 2022 • 101 Fuel-upsProperty of furlofoder
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13.3 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 • 110 Fuel-upsProperty of zardoz5
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14.5 Avg MPG
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Pimpin AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Aug 2023 • 24 Fuel-upsProperty of cdizzle
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13.0 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 • 275 Fuel-upsProperty of mnoland2000
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13.1 Avg MPG
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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 • 184 Fuel-upsProperty of NHATC
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11.3 Avg MPG
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Sierra 2500HD Denali (Bertha)
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Jul 2024 • 11 Fuel-upsProperty of podnucmo
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14.6 Avg MPG
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AT4
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Jul 2022 • 104 Fuel-upsProperty of Dziuky
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16.8 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 • 161 Fuel-upsProperty of hoodsh
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14.3 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 • 59 Fuel-upsProperty of rlsudlow
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15.1 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 • 27 Fuel-upsProperty of tdbreeding
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12.4 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 • 20 Fuel-upsProperty of Bigboydmax
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13.1 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 • 78 Fuel-upsProperty of jeepin13
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14.6 Avg MPG
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My Sierra 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 10 Speed
Added Oct 2024 • 3 Fuel-upsProperty of reedsj94
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16.3 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 • 153 Fuel-upsProperty of maaiman
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16.0 Avg MPG
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GMC Sierra 2500 HD
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Aug 2024 • 5 Fuel-upsProperty of josh021483
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16.4 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 • 81 Fuel-upsProperty of bto71
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14.3 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 • 14 Fuel-upsProperty of fasdon
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11.2 Avg MPG
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Gallo Negro
2020 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added May 2022 • 30 Fuel-upsProperty of doakman1
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9.5 Avg MPG
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COVID Cruiser
2020 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2020 • 225 Fuel-upsProperty of jambiefsj
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16.6 Avg MPG