Based on data from 55 vehicles, 4,434 fuel-ups and 1,341,959 miles of driving, the 2021 Chevrolet Silverado 2500 HD gets a combined Avg MPG of 12.65 with a 0.12 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (29) 6.6L V8 GAS (26) Any Body Style Crew Cab Pickup (14) Any Submodel Custom (6) WT (7) High Country (7) LTZ (17) LT (18)

Below you can see a distribution of the fuel-ups with 19 outliers (0.43%) removed.

Following shows the average MPG of each of the 55 vehicles in the system.

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• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 10 Speed
  Added Feb 2022 • 182 Fuel-ups

  Property of karla310

• 10.6 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD Custom 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2023 • 46 Fuel-ups

  Property of tboy14

• 17.5 Avg MPG

• 2021 Silverado 2500HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2022 • 167 Fuel-ups

  Property of Aerohead

• 14.9 Avg MPG

• Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2020 • 126 Fuel-ups

  Property of calix0817

• 12.5 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2021 • 249 Fuel-ups

  Property of mturnerua

• 13.4 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Jan 2021 • 528 Fuel-ups

  Property of k9robinson

• 10.8 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2024 • 49 Fuel-ups

  Property of jake4402

• 16.7 Avg MPG

• Z71

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2020 • 191 Fuel-ups

  Property of 34mpgRam

• 18.3 Avg MPG

• Brandy

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Sep 2021 • 142 Fuel-ups

  Property of tdtoolman

• 12.5 Avg MPG

• 316-59

  2021 Chevrolet Silverado 2500 HD Custom 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Sep 2023 • 90 Fuel-ups

  Property of Brandon-Lawrence

• 12.5 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2025 • 16 Fuel-ups

  Property of JustinSoper

• 15.4 Avg MPG

• Tow Rig2

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Apr 2021 • 171 Fuel-ups

  Property of spark00

• 12.7 Avg MPG

• 2500 Silverado

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Nov 2023 • 42 Fuel-ups

  Property of lostk0z

• 9.2 Avg MPG

• The Beast

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Nov 2020 • 124 Fuel-ups

  Property of DJDriverZ

• 11.5 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 22 Fuel-ups

  Property of DanielR67

• 15.2 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 10 Speed
  Added Jun 2021 • 209 Fuel-ups

  Property of Belken

• 12.3 Avg MPG

• Big Red

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2024 • 83 Fuel-ups

  Property of Namenotapplicable

• 15.3 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Apr 2024 • 46 Fuel-ups

  Property of ChavoChevy

• 11.4 Avg MPG

• Chevy

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Oct 2024 • 7 Fuel-ups

  Property of Stumpi

• 12.7 Avg MPG

• Black Truck 2

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 152 Fuel-ups

  Property of 1720diesel

• 16.6 Avg MPG

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