Based on data from 92 vehicles, 4,754 fuel-ups and 1,349,146 miles of driving, the 2004 GMC Sierra 1500 gets a combined Avg MPG of 14.07 with a 0.08 MPG margin of error.

Any Engine Type 4.3L V6 GAS (11) 4.8L V8 GAS (4) 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 (18) SLE (42) Other (14)

Below you can see a distribution of the fuel-ups with 198 outliers (4.00%) removed.

Following shows the average MPG of each of the 92 vehicles in the system.

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• My Sierra 1500

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2019 • 10 Fuel-ups

  Property of brybry33

• 12.8 Avg MPG

• Black Seirra 1500

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Feb 2019 • 16 Fuel-ups

  Property of jacmohr

• 13.6 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Feb 2017 • 81 Fuel-ups

  Property of jtstones

• 12.9 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Apr 2019 • 4 Fuel-ups

  Property of countrylife23

• 13.3 Avg MPG

• Georgetta Marsella Corrine

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Dec 2016 • 37 Fuel-ups

  Property of PogiPJ

• 13.7 Avg MPG

• Sierra

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Standard 5 Speed Extended Cab Pickup
  Added Jul 2016 • 90 Fuel-ups

  Property of higs

• 14.3 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 5.3L V8 GAS Automatic 4 Speed
  Added May 2018 • 14 Fuel-ups

  Property of richardharvey

• 18.8 Avg MPG

• Sierra

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2018 • 62 Fuel-ups

  Property of CamaroSR

• 12.7 Avg MPG

• Truck

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Apr 2022 • 24 Fuel-ups

  Property of mlpoland

• 15.1 Avg MPG

• Truck

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Aug 2018 • 24 Fuel-ups

  Property of mlpoland

• 15.1 Avg MPG

• Truck

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Dec 2020 • 24 Fuel-ups

  Property of mlpoland

• 15.1 Avg MPG

• 2004 Gmc

  2004 GMC Sierra 1500 SLE 5,3L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Sep 2018 • 162 Fuel-ups

  Property of al56xxx

• 14.2 Avg MPG

• Sierra

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added May 2018 • 202 Fuel-ups

  Property of joesmith

• 12.1 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed
  Added Sep 2017 • 17 Fuel-ups

  Property of wesr5guy

• 14.9 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
  Added Nov 2017 • 18 Fuel-ups

  Property of edipento

• 11.5 Avg MPG

• GMC

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 159 Fuel-ups

  Property of BigDave44

• 14.6 Avg MPG

• My Sierra 1500

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

  Property of aaronh_17

• 12.2 Avg MPG

• My Sierra 1500

  2004 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Dec 2017 • 8 Fuel-ups

  Property of Superjet

• 13.8 Avg MPG

• Truck

  2004 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 155 Fuel-ups

  Property of mmiller124

• 15.3 Avg MPG

• 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

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