Based on data from 38 vehicles, 2,586 fuel-ups and 820,328 miles of driving, the 2021 Chevrolet Silverado 3500 HD gets a combined Avg MPG of 12.90 with a 0.15 MPG margin of error.

Any Engine Type 6.6L V8 DIESEL (35) 6.6L V8 GAS (3) Any Body Style Crew Cab Pickup (9) Any Submodel WT (3) LTZ (8) High Country (12) LT (15)

Below you can see a distribution of the fuel-ups with 16 outliers (0.61%) removed.

Following shows the average MPG of each of the 38 vehicles in the system.

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• Truck

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

  Property of CiATRiX

• 14.0 Avg MPG

• B. 2021 Chevy 3500 SHAMU

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2021 • 162 Fuel-ups

  Property of t531

• 12.6 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2022 • 45 Fuel-ups

  Property of gsteinho

• 14.7 Avg MPG

• Chevy Adventure

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 148 Fuel-ups

  Property of tgrshk19

• 11.3 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 99 Fuel-ups

  Property of MarkDroubay

• 15.0 Avg MPG

• Fred

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2021 • 121 Fuel-ups

  Property of mertzm

• 12.8 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Aug 2021 • 143 Fuel-ups

  Property of chrisblah

• 13.9 Avg MPG

• White Flatbed Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD WT 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2024 • 10 Fuel-ups

  Property of 18FeetAg

• 13.2 Avg MPG

• Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 136 Fuel-ups

  Property of kevnjan7

• 17.1 Avg MPG

• Silver Bullet

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 113 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 Jun 2021 • 102 Fuel-ups

  Property of Bluemoh

• 14.5 Avg MPG

• 21 Dually Silverado

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2021 • 82 Fuel-ups

  Property of julianwarren2

• 11.3 Avg MPG

• High Country

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

  Property of TheCaptain00

• 12.8 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Nov 2020 • 105 Fuel-ups

  Property of bobp30

• 13.7 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 GAS Automatic 6 Speed
  Added Mar 2021 • 204 Fuel-ups

  Property of hafnutz67

• 11.5 Avg MPG

• My Silverado 3500 HD

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

  Property of preacher238

• 14.5 Avg MPG

• Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2022 • 117 Fuel-ups

  Property of oppeke01

• 13.6 Avg MPG

• Silverado 3500HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL
  Added Jan 2024 • 6 Fuel-ups

  Property of CtryBoyInMT

• 15.1 Avg MPG

• Sammy SR

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 40 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 • 70 Fuel-ups

  Property of d_westall

• 14.6 Avg MPG

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