Based on data from 39 vehicles, 2,843 fuel-ups and 908,490 miles of driving, the 2021 Chevrolet Silverado 3500 HD gets a combined Avg MPG of 12.87 with a 0.15 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (36) 6.6L V8 GAS (3) Any Body Style Crew Cab Pickup (11) Any Submodel WT (3) LTZ (8) LT (14) High Country (14)

Below you can see a distribution of the fuel-ups with 19 outliers (0.66%) removed.

Following shows the average MPG of each of the 39 vehicles in the system.

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• Chevy Adventure

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 186 Fuel-ups

  Property of tgrshk19

• 11.1 Avg MPG

• Truck

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 GAS Crew Cab Pickup
  Added Jan 2023 • 35 Fuel-ups

  Property of CiATRiX

• 13.6 Avg MPG

• Black Betty

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2024 • 31 Fuel-ups

  Property of novaman64

• 12.8 Avg MPG

• Silverado 3500HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2021 • 72 Fuel-ups

  Property of Charles_slc

• 15.1 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2022 • 60 Fuel-ups

  Property of gsteinho

• 14.8 Avg MPG

• Fred

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2021 • 197 Fuel-ups

  Property of mertzm

• 12.2 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2023 • 42 Fuel-ups

  Property of Paul5608

• 16.6 Avg MPG

• Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 162 Fuel-ups

  Property of kevnjan7

• 17.2 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2021 • 166 Fuel-ups

  Property of chrisblah

• 14.0 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Mar 2021 • 238 Fuel-ups

  Property of hafnutz67

• 11.5 Avg MPG

• Chevy

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2022 • 95 Fuel-ups

  Property of d_westall

• 14.2 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2020 • 150 Fuel-ups

  Property of Diveboss164

• 9.4 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2020 • 122 Fuel-ups

  Property of bobp30

• 13.8 Avg MPG

• Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2022 • 145 Fuel-ups

  Property of oppeke01

• 13.6 Avg MPG

• Silver Bullet

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 127 Fuel-ups

  Property of TPAW

• 13.4 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 125 Fuel-ups

  Property of MarkDroubay

• 14.8 Avg MPG

• Sammy SR

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 44 Fuel-ups

  Property of mjshultz

• 10.8 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2023 • 41 Fuel-ups

  Property of llegocki

• 10.1 Avg MPG

• 21 Dually Silverado

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2021 • 95 Fuel-ups

  Property of julianwarren2

• 11.5 Avg MPG

• 3500 silverado

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Mar 2024 • 14 Fuel-ups

  Property of davemayn13

• 10.7 Avg MPG

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