Based on data from 53 vehicles, 4,327 fuel-ups and 1,306,238 miles of driving, the 2021 Chevrolet Silverado 2500 HD gets a combined Avg MPG of 12.63 with a 0.12 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (27) 6.6L V8 GAS (26) Any Body Style Crew Cab Pickup (14) Any Submodel Custom (6) WT (7) High Country (7) LTZ (15) LT (18)

Below you can see a distribution of the fuel-ups with 18 outliers (0.41%) removed.

Following shows the average MPG of each of the 53 vehicles in the system.

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• Brandy

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Sep 2021 • 136 Fuel-ups

  Property of tdtoolman

• 12.5 Avg MPG

• 2500 Silverado

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Nov 2023 • 40 Fuel-ups

  Property of lostk0z

• 9.2 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Apr 2024 • 41 Fuel-ups

  Property of ChavoChevy

• 11.5 Avg MPG

• The Beast

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Nov 2020 • 120 Fuel-ups

  Property of DJDriverZ

• 11.4 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2024 • 40 Fuel-ups

  Property of jake4402

• 16.4 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 10 Speed
  Added Jun 2021 • 204 Fuel-ups

  Property of Belken

• 12.3 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 19 Fuel-ups

  Property of DanielR67

• 15.2 Avg MPG

• 316-59

  2021 Chevrolet Silverado 2500 HD Custom 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Sep 2023 • 83 Fuel-ups

  Property of Brandon-Lawrence

• 12.6 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 99 Fuel-ups

  Property of hot86rod1

• 14.8 Avg MPG

• 21 Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2020 • 148 Fuel-ups

  Property of idralig

• 15.5 Avg MPG

• Duramax

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2024 • 56 Fuel-ups

  Property of bolesrick

• 15.2 Avg MPG

• My Silverado 2500 HD

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

  Property of tgambrell

• 18.2 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Jan 2021 • 517 Fuel-ups

  Property of k9robinson

• 10.8 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 10 Speed
  Added Feb 2022 • 176 Fuel-ups

  Property of karla310

• 10.6 Avg MPG

• 2500 HD

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 GAS Automatic 6 Speed
  Added Aug 2021 • 149 Fuel-ups

  Property of cae2583

• 12.9 Avg MPG

• Z71

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Oct 2020 • 186 Fuel-ups

  Property of 34mpgRam

• 18.3 Avg MPG

• Black Truck 2

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 150 Fuel-ups

  Property of 1720diesel

• 16.7 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2021 • 244 Fuel-ups

  Property of mturnerua

• 13.5 Avg MPG

• 2021 Silverado 2500HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2022 • 164 Fuel-ups

  Property of Aerohead

• 15.2 Avg MPG

• 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Jan 2025 • 141 Fuel-ups

  Property of tbailey68

• 10.4 Avg MPG

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