2021 GMC Sierra 2500 HD MPG
Based on data from 63 vehicles, 3,513 fuel-ups and 1,124,453 miles of driving, the 2021 GMC Sierra 2500 HD gets a combined Avg MPG of 13.16 with a 0.13 MPG margin of error.
Below you can see a distribution of the fuel-ups with 11 outliers (0.31%) removed.
Following shows the average MPG of each of the 63 vehicles in the system.
2021 GMC Sierra 2500 HDs For Sale Nearby
-
AT4 Whore
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2021 • 134 Fuel-upsProperty of pigpen23
-
12.3 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD SLT 6.6L V8 GAS Automatic 6 Speed
Added Jan 2021 • 32 Fuel-upsProperty of NGreen08
-
10.5 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2024 • 3 Fuel-upsProperty of fredc941
-
13.8 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed
Added Apr 2023 • 156 Fuel-upsProperty of mcgr0401
-
12.3 Avg MPG
-
2021 Sierra Denali HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2020 • 163 Fuel-upsProperty of LynnE24
-
14.4 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 6 Speed
Added Nov 2021 • 120 Fuel-upsProperty of Danm1228
-
11.6 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 10 Speed
Added Jan 2023 • 80 Fuel-upsProperty of Croybal06
-
13.5 Avg MPG
-
Big Bubba. My Sierra 2500 HD
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Jun 2021 • 88 Fuel-upsProperty of moose57
-
16.9 Avg MPG
-
2021 Denali HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Nov 2020 • 81 Fuel-upsProperty of DenaliDad
-
14.6 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD AT4 6.6L V8 GAS Automatic 6 Speed
Added Jun 2021 • 158 Fuel-upsProperty of gregnola
-
12.5 Avg MPG
-
Sierra 2500 HD aka Sully
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added May 2021 • 97 Fuel-upsProperty of Ryot
-
12.2 Avg MPG
-
2500Hd GMC
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added May 2021 • 119 Fuel-upsProperty of jmgolden1978
-
14.0 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Apr 2023 • 50 Fuel-upsProperty of bcfiremedic
-
12.6 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2022 • 40 Fuel-upsProperty of ryanhnicholson
-
11.7 Avg MPG
-
21 Denali HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 GAS Automatic 6 Speed
Added Apr 2021 • 36 Fuel-upsProperty of shreff86
-
11.1 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Sep 2023 • 128 Fuel-upsProperty of SeB21
-
17.0 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed
Added Jun 2021 • 140 Fuel-upsProperty of xETERNALx
-
13.5 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD SLE 6.6L V8 GAS Automatic 10 Speed
Added Oct 2021 • 128 Fuel-upsProperty of bdamats
-
11.5 Avg MPG
-
My Sierra 2500 HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2020 • 91 Fuel-upsProperty of mbrent77
-
16.3 Avg MPG
-
2021 Sierra 2500HD
2021 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Jan 2024 • 18 Fuel-upsProperty of Bost05
-
12.7 Avg MPG