Based on data from 52 vehicles, 4,087 fuel-ups and 1,243,596 miles of driving, the 2021 Chevrolet Silverado 2500 HD gets a combined Avg MPG of 12.70 with a 0.13 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (27) 6.6L V8 GAS (25) Any Body Style Crew Cab Pickup (13) Any Submodel Custom (6) WT (7) High Country (7) LTZ (15) LT (17)

Below you can see a distribution of the fuel-ups with 14 outliers (0.34%) removed.

Following shows the average MPG of each of the 52 vehicles in the system.

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• Tow Rig2

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Apr 2021 • 162 Fuel-ups

  Property of spark00

• 12.8 Avg MPG

• Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2021 • 93 Fuel-ups

  Property of Rsea10

• 16.0 Avg MPG

• Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Dec 2020 • 121 Fuel-ups

  Property of calix0817

• 12.4 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Sep 2024 • 5 Fuel-ups

  Property of tgambrell

• 16.3 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Apr 2024 • 35 Fuel-ups

  Property of ChavoChevy

• 11.8 Avg MPG

• Black Truck 2

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 149 Fuel-ups

  Property of 1720diesel

• 16.7 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD Custom 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2023 • 41 Fuel-ups

  Property of tboy14

• 18.1 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2021 • 108 Fuel-ups

  Property of Patrickcar

• 13.4 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2024 • 31 Fuel-ups

  Property of Mako7

• 11.7 Avg MPG

• Red

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Mar 2021 • 81 Fuel-ups

  Property of beans29

• 13.4 Avg MPG

• 2021 Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 6 Speed
  Added Mar 2021 • 187 Fuel-ups

  Property of ThePoolPro

• 8.7 Avg MPG

• Work Truck

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 10 Speed
  Added May 2021 • 268 Fuel-ups

  Property of bgedney

• 10.5 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 6 Speed
  Added Oct 2023 • 37 Fuel-ups

  Property of bmlang01

• 12.9 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2020 • 117 Fuel-ups

  Property of fdelfino83

• 15.6 Avg MPG

• 2021 Silverado 2500

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Mar 2023 • 5 Fuel-ups

  Property of Keagan-1990

• 10.6 Avg MPG

• Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2021 • 24 Fuel-ups

  Property of fiveopote

• 15.3 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD Custom 6.6L V8 GAS Automatic 6 Speed
  Added May 2021 • 215 Fuel-ups

  Property of stephen_khunter

• 11.0 Avg MPG

• My Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2020 • 43 Fuel-ups

  Property of txBoot

• 15.1 Avg MPG

• 2021 2500HD Custom

  2021 Chevrolet Silverado 2500 HD Custom 6.6L V8 GAS Automatic 6 Speed
  Added Jan 2022 • 16 Fuel-ups

  Property of 44tshaw

• 13.1 Avg MPG

• 2021 Silverado 2500 HD

  2021 Chevrolet Silverado 2500 HD WT 6.6L V8 GAS Automatic 10 Speed
  Added Jun 2021 • 22 Fuel-ups

  Property of jpmorris22

• 12.8 Avg MPG

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