Based on data from 39 vehicles, 2,980 fuel-ups and 956,153 miles of driving, the 2021 Chevrolet Silverado 3500 HD gets a combined Avg MPG of 12.89 with a 0.14 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 (0.63%) removed.

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

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• Black Betty

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2024 • 42 Fuel-ups

  Property of novaman64

• 12.9 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2023 • 45 Fuel-ups

  Property of Paul5608

• 16.6 Avg MPG

• Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2022 • 153 Fuel-ups

  Property of oppeke01

• 13.6 Avg MPG

• Fred

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2021 • 224 Fuel-ups

  Property of mertzm

• 12.0 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2021 • 174 Fuel-ups

  Property of chrisblah

• 14.1 Avg MPG

• 21 Dually Silverado

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2021 • 103 Fuel-ups

  Property of julianwarren2

• 11.5 Avg MPG

• Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 167 Fuel-ups

  Property of kevnjan7

• 17.1 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2021 • 158 Fuel-ups

  Property of preacher238

• 14.4 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Mar 2021 • 253 Fuel-ups

  Property of hafnutz67

• 11.6 Avg MPG

• Silver Bullet

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 133 Fuel-ups

  Property of TPAW

• 13.3 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 132 Fuel-ups

  Property of MarkDroubay

• 14.9 Avg MPG

• Silverado 3500HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2021 • 75 Fuel-ups

  Property of Charles_slc

• 15.2 Avg MPG

• Truck

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 GAS Crew Cab Pickup
  Added Jan 2023 • 40 Fuel-ups

  Property of CiATRiX

• 13.5 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2022 • 63 Fuel-ups

  Property of gsteinho

• 14.8 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2020 • 130 Fuel-ups

  Property of bobp30

• 13.8 Avg MPG

• Sammy SR

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 47 Fuel-ups

  Property of mjshultz

• 10.6 Avg MPG

• Chevy

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2022 • 104 Fuel-ups

  Property of d_westall

• 14.3 Avg MPG

• 1 Gertrude

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added May 2021 • 97 Fuel-ups

  Property of AndieAnderson

• 14.8 Avg MPG

• Silverado 3500HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL
  Added Jan 2024 • 13 Fuel-ups

  Property of CtryBoyInMT

• 15.7 Avg MPG

• Chevy Adventure

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 187 Fuel-ups

  Property of tgrshk19

• 11.1 Avg MPG

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