Based on data from 66 vehicles, 5,403 fuel-ups and 1,703,046 miles of driving, the 2003 Chevrolet Avalanche 1500 gets a combined Avg MPG of 13.72 with a 0.07 MPG margin of error.

Any Engine Type 5.3L V8 GAS (51) V8 GAS (14) Any Body Style Crew Cab Pickup (20) Cab & Chassis - Crew Cab (2) Any Submodel North Face (2) On Road Edition (3) Base (15) Z71 (31) Other (15)

Below you can see a distribution of the fuel-ups with 188 outliers (3.36%) removed.

Following shows the average MPG of each of the 66 vehicles in the system.

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• ‘03 Chevy Avalanche

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 232 Fuel-ups

  Property of thisisjonathonm

• 12.6 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Cab & Chassis - Crew Cab
  Added Mar 2017 • 175 Fuel-ups

  Property of Quentin78

• 12.8 Avg MPG

• 2003 Chevy Avalanche

  2003 Chevrolet Avalanche 1500 On Road Edition 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 553 Fuel-ups

  Property of handyannie

• 5.5 Avg MPG

• Truck

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 145 Fuel-ups

  Property of korey937

• 11.7 Avg MPG

• Hatcher

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2020 • 19 Fuel-ups

  Property of iluvtrble

• 13.2 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 171 Fuel-ups

  Property of danblosch

• 12.9 Avg MPG

• Red

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Aug 2018 • 148 Fuel-ups

  Property of varmenta73

• 14.9 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Sep 2017 • 162 Fuel-ups

  Property of dasny97

• 11.7 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 GAS V8
  Added Apr 2013 • 38 Fuel-ups

  Property of trx

• 13.1 Avg MPG

• Chevrolet Avalanche 2003

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 321 Fuel-ups

  Property of ktrif

• 13.2 Avg MPG

• Chevrolet Avalanche 1500

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 14 Fuel-ups

  Property of prichard

• 13.1 Avg MPG

• Bumblebee

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 221 Fuel-ups

  Property of frito

• 14.1 Avg MPG

• Avy

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Dec 2017 • 98 Fuel-ups

  Property of shawnsteiner

• 14.7 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2015 • 110 Fuel-ups

  Property of quacketj

• 14.0 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 162 Fuel-ups

  Property of V3rmiciousKnid

• 14.8 Avg MPG

• My Avalanche 1500

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added May 2019 • 19 Fuel-ups

  Property of Tmc777

• 12.1 Avg MPG

• My Avalanche 1500

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2020 • 6 Fuel-ups

  Property of seaplane1

• 21.7 Avg MPG

• Chevrolet Avalanche 1500

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jul 2019 • 32 Fuel-ups

  Property of heyzeusc

• 14.4 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Sep 2015 • 8 Fuel-ups

  Property of biprincessTx

• 32.0 Avg MPG

• My Avalanche 1500

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2017 • 10 Fuel-ups

  Property of troutbum65

• 13.2 Avg MPG

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