Based on data from 93 vehicles, 4,847 fuel-ups and 1,380,623 miles of driving, the 2004 GMC Sierra 1500 gets a combined Avg MPG of 14.13 with a 0.08 MPG margin of error.

Any Engine Type 4.3L V6 GAS (11) 4.8L V8 GAS (5) 5.3L V8 FLEX (4) 5.3L V8 GAS (53) 6.0L V8 GAS (4) GAS (1) V6 GAS (1) V8 GAS (10) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (16) Crew Cab Pickup (3) Extended Crew Cab Pickup (2) Any Submodel WT (4) Denali (4) Base (10) SLT (19) SLE (42) Other (14)

Below you can see a distribution of the fuel-ups with 209 outliers (4.13%) removed.

Following shows the average MPG of each of the 93 vehicles in the system.

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• GMC

  2004 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic Extended Crew Cab Pickup
  Added Sep 2018 • 62 Fuel-ups

  Property of boalexander

• 17.4 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed
  Added Aug 2017 • 3 Fuel-ups

  Property of Cook3677

• 11.2 Avg MPG

• Truck

  2004 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic
  Added Sep 2017 • 7 Fuel-ups

  Property of donnysave

• 16.4 Avg MPG

• Gmc

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 25 Fuel-ups

  Property of aaronh_17

• 15.8 Avg MPG

• Truck

  2004 GMC Sierra 1500 WT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 58 Fuel-ups

  Property of J6152

• 13.6 Avg MPG

• Truckie

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Mar 2017 • 3 Fuel-ups

  Property of Garrett04Sierra

• 12.9 Avg MPG

• White Sierra

  2004 GMC Sierra 1500 GAS V8
  Added Jan 2013 • 200 Fuel-ups

  Property of bluebandit78

• 14.2 Avg MPG

• Z71

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2015 • 28 Fuel-ups

  Property of Deere1954

• 12.5 Avg MPG

• Pick-up

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 174 Fuel-ups

  Property of tobermike

• 16.4 Avg MPG

• Z71

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2018 • 253 Fuel-ups

  Property of Meezer

• 14.6 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
  Added Jan 2016 • 22 Fuel-ups

  Property of Bolte

• 11.7 Avg MPG

• Sierra 1

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Aug 2013 • 36 Fuel-ups

  Property of Reddy

• 14.3 Avg MPG

• GMC

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 225 Fuel-ups

  Property of BigDave44

• 14.9 Avg MPG

• Sierra Z71 Auto

  2004 GMC Sierra 1500 SLT
  Added Oct 2013 • 42 Fuel-ups

  Property of RedDragon29

• 15.2 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 WT 4.3L GAS V6 Automatic 4 Crew Cab Pickup (4 Door)
  Added May 2015 • 15 Fuel-ups

  Property of zach1223

• 13.7 Avg MPG

• Sierra

  2004 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jan 2019 • 138 Fuel-ups

  Property of bluebirdcb93

• 14.3 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 SLT 5.3L GAS V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Jul 2014 • 47 Fuel-ups

  Property of DominionSix

• 14.0 Avg MPG

• Sierra

  2004 GMC Sierra 1500 GAS V8
  Added Feb 2014 • 17 Fuel-ups

  Property of CraigEdgemon

• 15.5 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 SLE 4.3L GAS V6 Automatic 4 Crew Cab Pickup (4 Door)
  Added Dec 2014 • 3 Fuel-ups

  Property of munger

• 14.5 Avg MPG

• GMC

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 136 Fuel-ups

  Property of racheldeich

• 14.8 Avg MPG

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