Based on data from 184 vehicles, 14,343 fuel-ups and 3,686,500 miles of driving, the 2004 Chevrolet Silverado 2500 HD gets a combined Avg MPG of 12.96 with a 0.07 MPG margin of error.

Any Engine Type 6.0L V8 CNG (1) 6.0L V8 GAS (48) 6.6L V8 DIESEL (102) 8.1L V8 GAS (3) V8 DIESEL (14) V8 GAS (11) Any Body Style Standard Cab Pickup (4) Extended Cab Pickup (14) Crew Cab Pickup (34) Cab & Chassis - Crew Cab (1) Any Submodel WT (3) Base (14) LS (69) LT (71) Other (27)

Below you can see a distribution of the fuel-ups with 344 outliers (2.34%) removed.

Following shows the average MPG of each of the 184 vehicles in the system.

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• My Silverado 2500 HD

  2004 Chevrolet Silverado 2500 HD LT 8.1L GAS V8 Automatic 4 Cab & Chassis (4 Door)
  Added Jul 2014 • 5 Fuel-ups

  Property of crewcabbum

• 10.8 Avg MPG

• Environment Canada Silverado

  2004 Chevrolet Silverado 2500 HD GAS V8
  Added Jun 2014 • 3 Fuel-ups

  Property of jimhawk

• 16.7 Avg MPG

• "Big Block" 2500HD 8.1/Allison

  2004 Chevrolet Silverado 2500 HD V8 GAS
  Added Mar 2013 • 12 Fuel-ups

  Property of DaubsNU1

• 11.7 Avg MPG

• Truck

  2004 Chevrolet Silverado 2500 HD
  Added Jun 2013 • 31 Fuel-ups

  Property of bfhollis

• 14.1 Avg MPG

• Dodge

  2004 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 4 Speed
  Added Sep 2016 • 25 Fuel-ups

  Property of GasittScott

• 14.6 Avg MPG

• Duramax

  2004 Chevrolet Silverado 2500 HD
  Added Jun 2013 • 4 Fuel-ups

  Property of ShakeNBake

• 15.8 Avg MPG

• 04 Silverado 2500HD

  2004 Chevrolet Silverado 2500 HD GAS V8
  Added Feb 2012 • 63 Fuel-ups

  Property of bMileage

• 11.6 Avg MPG

• Silverado 2500HD

  2004 Chevrolet Silverado 2500 HD GAS V8
  Added Jan 2014 • 3 Fuel-ups

  Property of AZJunk

• 20.1 Avg MPG

• 2004 2500HD

  2004 Chevrolet Silverado 2500 HD GAS V8
  Added Jan 2013 • 24 Fuel-ups

  Property of scottz

• 11.0 Avg MPG

• Big Red

  2004 Chevrolet Silverado 2500 HD LS 6.6L V8 DIESEL Automatic 5 Speed
  Added Mar 2017 • 45 Fuel-ups

  Property of skylerence

• 13.3 Avg MPG

• The Pig

  2004 Chevrolet Silverado 2500 HD GAS V8
  Added Aug 2012 • 4 Fuel-ups

  Property of MKorn

• 15.7 Avg MPG

• Darcy

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added Jan 2013 • 14 Fuel-ups

  Property of SnowCat99

• 14.2 Avg MPG

• big red

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added May 2012 • 26 Fuel-ups

  Property of mossburg

• 17.6 Avg MPG

• 2004 Dmax LLY

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added Feb 2011 • 31 Fuel-ups

  Property of calirider

• 14.2 Avg MPG

• 2004 Silverado 2500HD Duramax

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added Oct 2012 • 10 Fuel-ups

  Property of matysik

• 15.4 Avg MPG

• turbo

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added Dec 2012 • 20 Fuel-ups

  Property of trouble0n

• 14.8 Avg MPG

• Big Red

  2004 Chevrolet Silverado 2500 HD GAS V8
  Added Feb 2012 • 24 Fuel-ups

  Property of VinnieB

• 11.1 Avg MPG

• Beast

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added May 2012 • 12 Fuel-ups

  Property of mgehring

• 17.8 Avg MPG

• 2500HD

  2004 Chevrolet Silverado 2500 HD DIESEL V8
  Added Mar 2012 • 314 Fuel-ups

  Property of TexasTraffic

• 17.0 Avg MPG

• Chevy

  2004 Chevrolet Silverado 2500 HD LT 6.6L V8 DIESEL Automatic 5 Speed
  Added Sep 2016 • 65 Fuel-ups

  Property of Braines911

• 14.6 Avg MPG

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