Based on data from 18 vehicles, 1,539 fuel-ups and 505,805 miles of driving, the 2004 Chevrolet Silverado 3500 gets a combined Avg MPG of 12.92 with a 0.18 MPG margin of error.

Any Engine Type 6.0L V8 GAS (1) 6.6L V8 DIESEL (13) 8.1L V8 GAS (3) Any Body Style Extended Cab Pickup (4) Crew Cab Pickup (1) Cab & Chassis (3) Any Submodel Base (1) WT (2) LT (3) LS (12)

Below you can see a distribution of the fuel-ups with 68 outliers (4.23%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

• Black Bess

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Aug 2022 • 81 Fuel-ups

  Property of jaihacker

• 16.9 Avg MPG

• CHEVY TRUCK

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
  Added Apr 2020 • 67 Fuel-ups

  Property of surpdlr

• 12.1 Avg MPG

• My Silverado 3500

  2004 Chevrolet Silverado 3500 LT 6.6L V8 DIESEL Automatic 5 Speed
  Added Jun 2023 • 4 Fuel-ups

  Property of QRS61

• 21.8 Avg MPG

• 2004 Silverado

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed Cab & Chassis
  Added Mar 2021 • 3 Fuel-ups

  Property of shanedowdy

• 29.6 Avg MPG

• My Silverado 3500

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed
  Added Jul 2021 • 47 Fuel-ups

  Property of Duramax_Brent

• 14.7 Avg MPG

• Work Truck

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed Cab & Chassis
  Added May 2018 • 416 Fuel-ups

  Property of shanedowdy

• 13.0 Avg MPG

• diesel truck

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 4 Speed Extended Cab Pickup
  Added Oct 2012 • 201 Fuel-ups

  Property of jaihacker

• 14.7 Avg MPG

• Chevy Truck

  2004 Chevrolet Silverado 3500 LT 6.6L V8 DIESEL Automatic 5 Speed Crew Cab Pickup
  Added Apr 2015 • 168 Fuel-ups

  Property of rioriorio

• 15.0 Avg MPG

• Silverado

  2004 Chevrolet Silverado 3500 LS 8.1L V8 GAS Automatic 5 Speed
  Added Aug 2016 • 15 Fuel-ups

  Property of slalino

• 9.1 Avg MPG

• Jeb

  2004 Chevrolet Silverado 3500 LT 6.6L V8 DIESEL Automatic 5 Speed Extended Cab Pickup
  Added Sep 2020 • 16 Fuel-ups

  Property of Ol-Jeb

• 18.8 Avg MPG

• Chevy duramax C3500

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed
  Added Mar 2017 • 182 Fuel-ups

  Property of Darrendully

• 14.3 Avg MPG

• My Silverado 3500

  2004 Chevrolet Silverado 3500 LS 8.1L V8 GAS Automatic 5 Speed
  Added Feb 2019 • 5 Fuel-ups

  Property of Trey8234

• 6.8 Avg MPG

• Terminal Truck

  2004 Chevrolet Silverado 3500 WT 6.0L V8 GAS Automatic 4 Speed Cab & Chassis
  Added Feb 2018 • 10 Fuel-ups

  Property of who_ll_yev

• 6.0 Avg MPG

• My Silverado 3500

  2004 Chevrolet Silverado 3500 WT 6.6L V8 DIESEL Automatic 5 Speed
  Added Apr 2018 • 81 Fuel-ups

  Property of kylewallin626

• 10.0 Avg MPG

• Van 2004 MATT

  2004 Chevrolet Silverado 3500
  Added Aug 2016 • 290 Fuel-ups

  Property of blk61

• 11.8 Avg MPG

• My Silverado 3500

  2004 Chevrolet Silverado 3500 LS 8.1L V8 GAS Automatic 5 Speed
  Added Oct 2017 • 35 Fuel-ups

  Property of LisaLu

• 10.4 Avg MPG

• My Silverado 3500

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed
  Added Apr 2017 • 6 Fuel-ups

  Property of erictolon

• 14.2 Avg MPG

• Grey chevy

  2004 Chevrolet Silverado 3500 LS 6.6L V8 DIESEL Automatic 5 Speed
  Added Mar 2017 • 77 Fuel-ups

  Property of Darrendully

• 14.9 Avg MPG