Based on data from 38 vehicles, 2,613 fuel-ups and 828,908 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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• 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

• Silverado 3500HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added May 2021 • 65 Fuel-ups

  Property of Charles_slc

• 14.8 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Feb 2023 • 39 Fuel-ups

  Property of Paul5608

• 16.6 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 6 Speed
  Added Jul 2022 • 43 Fuel-ups

  Property of EdgeEmanuel

• 16.3 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Oct 2020 • 148 Fuel-ups

  Property of Diveboss164

• 9.4 Avg MPG

• Merlin

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 69 Fuel-ups

  Property of pilotchuckles

• 9.7 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Mar 2021 • 115 Fuel-ups

  Property of JTMetz

• 14.0 Avg MPG

• 62002

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2022 • 29 Fuel-ups

  Property of Hirail_Harold

• 12.8 Avg MPG

• 3500HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Apr 2021 • 73 Fuel-ups

  Property of bfdarren

• 12.3 Avg MPG

• Chevy 3500HD

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Feb 2021 • 71 Fuel-ups

  Property of cdsuttles

• 11.9 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Jan 2022 • 28 Fuel-ups

  Property of Avocet55

• 13.8 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Jun 2021 • 13 Fuel-ups

  Property of uomgacman

• 13.6 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD WT 6.6L V8 GAS Automatic 6 Speed
  Added Jul 2021 • 22 Fuel-ups

  Property of JHerring08

• 11.0 Avg MPG

• My Silverado 3500 HD

  2021 Chevrolet Silverado 3500 HD High Country 6.6L V8 DIESEL Automatic 10 Speed
  Added Jul 2021 • 18 Fuel-ups

  Property of edroun

• 14.3 Avg MPG

• Big Red Dually

  2021 Chevrolet Silverado 3500 HD LT 6.6L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 17 Fuel-ups

  Property of Jt_Hd

• 14.1 Avg MPG

• 3500 HD

  2021 Chevrolet Silverado 3500 HD WT 6.6L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 14 Fuel-ups

  Property of Kschumake83

• 12.7 Avg MPG

• 2021 Chevrolet 3500 HD

  2021 Chevrolet Silverado 3500 HD LTZ 6.6L V8 DIESEL Automatic 10 Speed
  Added Dec 2020 • 22 Fuel-ups

  Property of nbitom

• 15.6 Avg MPG

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