2020 GMC Sierra 3500 HD MPG
Based on data from 42 vehicles, 2,328 fuel-ups and 831,608 miles of driving, the 2020 GMC Sierra 3500 HD gets a combined Avg MPG of 13.24 with a 0.16 MPG margin of error.
Below you can see a distribution of the fuel-ups with 53 outliers (2.23%) removed.
Following shows the average MPG of each of the 42 vehicles in the system.
2020 GMC Sierra 3500 HDs For Sale Nearby
-
Denali HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added May 2024 • 38 Fuel-upsProperty of davijoh
-
11.8 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2020 • 154 Fuel-upsProperty of ghurd
-
14.3 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Jul 2024 • 17 Fuel-upsProperty of maddess00
-
17.7 Avg MPG
-
GMC PlanetKiller
2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
Added Dec 2022 • 46 Fuel-upsProperty of KyleMac
-
14.2 Avg MPG
-
2020 Sierra
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Jan 2023 • 112 Fuel-upsProperty of brfs
-
15.9 Avg MPG
-
Denali 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2021 • 119 Fuel-upsProperty of 2010RWCM
-
13.7 Avg MPG
-
2020 GMC 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2020 • 393 Fuel-upsProperty of Gassy1976
-
14.6 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
Added Apr 2024 • 13 Fuel-upsProperty of Ranger473
-
12.8 Avg MPG
-
GMC Sierra 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Apr 2023 • 55 Fuel-upsProperty of audiododd
-
13.8 Avg MPG
-
2020 3500 HD Denali
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added May 2024 • 24 Fuel-upsProperty of bobsearle
-
13.8 Avg MPG
-
2020 Def
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Apr 2023 • 15 Fuel-upsProperty of brfs
-
410.4 Avg MPG
-
GMC
2020 GMC Sierra 3500 HD AT4 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Nov 2022 • 74 Fuel-upsProperty of kitakidscomcastnet
-
14.4 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 GAS Automatic 6 Speed
Added Jul 2020 • 86 Fuel-upsProperty of jdmich
-
10.7 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Jan 2020 • 7 Fuel-upsProperty of Alec55
-
14.0 Avg MPG
-
Star Lord vol. 2
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Jun 2021 • 40 Fuel-upsProperty of rpar86
-
11.2 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD SLT 6.6L V8 DIESEL Automatic 10 Speed
Added Jul 2020 • 183 Fuel-upsProperty of abartlett
-
15.4 Avg MPG
-
My Sierra 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added May 2020 • 6 Fuel-upsProperty of wedgie321
-
10.7 Avg MPG
-
My Sierra 3500 HD Duramax
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Apr 2024 • 13 Fuel-upsProperty of Bscherr
-
8.4 Avg MPG
-
Dee 3500 HD
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Mar 2020 • 283 Fuel-upsProperty of deewhite
-
12.9 Avg MPG
-
Damon’s Sierra 3500 HD Denali
2020 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 10 Speed
Added Feb 2020 • 293 Fuel-upsProperty of Demon2JZ
-
11.2 Avg MPG