Based on data from 69 vehicles, 6,420 fuel-ups and 1,998,095 miles of driving, the 2003 Chevrolet Avalanche 1500 gets a combined Avg MPG of 13.80 with a 0.07 MPG margin of error.

Any Engine Type 5.3L V8 GAS (55) V8 GAS (13) Any Body Style Crew Cab Pickup (22) Cab & Chassis - Crew Cab (2) Any Submodel On Road Edition (2) North Face (3) Base (20) Z71 (30) Other (14)

Below you can see a distribution of the fuel-ups with 248 outliers (3.72%) removed.

Following shows the average MPG of each of the 69 vehicles in the system.

• «
• 1
• 2
• 3
• 4
• »

• Avalanche

  2003 Chevrolet Avalanche 1500 GAS V8
  Added Apr 2013 • 54 Fuel-ups

  Property of trx

• 12.9 Avg MPG

• Chevrolet Avalanche 2003

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 325 Fuel-ups

  Property of ktrif

• 13.2 Avg MPG

• My Avalanche 1500

  2003 Chevrolet Avalanche 1500 North Face 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2022 • 12 Fuel-ups

  Property of brysonboy2002

• 11.0 Avg MPG

• 2003 Chevy Avalanche

  2003 Chevrolet Avalanche 1500 On Road Edition 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 638 Fuel-ups

  Property of handyannie

• 6.0 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Dec 2021 • 299 Fuel-ups

  Property of texasavy

• 14.0 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 178 Fuel-ups

  Property of V3rmiciousKnid

• 14.6 Avg MPG

• Henrietta

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jun 2021 • 35 Fuel-ups

  Property of scoob8000

• 14.5 Avg MPG

• The Avalanche

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2021 • 24 Fuel-ups

  Property of ethoover

• 15.7 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS
  Added Nov 2019 • 25 Fuel-ups

  Property of ManM

• 16.9 Avg MPG

• Avalanche

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2015 • 142 Fuel-ups

  Property of quacketj

• 13.9 Avg MPG

• My Avalanche 1500

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Dec 2021 • 15 Fuel-ups

  Property of LayinDoors

• 11.4 Avg MPG

• Hatcher

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2020 • 40 Fuel-ups

  Property of iluvtrble

• 13.1 Avg MPG

• Bumblebee

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 241 Fuel-ups

  Property of frito

• 14.0 Avg MPG

• Red

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Aug 2018 • 180 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 • 184 Fuel-ups

  Property of dasny97

• 11.7 Avg MPG

• Avy

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Dec 2017 • 121 Fuel-ups

  Property of shawnsteiner

• 14.4 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

• Stud Truck

  2003 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 98 Fuel-ups

  Property of rockker

• 14.1 Avg MPG

• Truck

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 149 Fuel-ups

  Property of korey937

• 11.7 Avg MPG

• Chevy Av

  2003 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Feb 2012 • 187 Fuel-ups

  Property of estebon

• 14.9 Avg MPG

• «
• 1
• 2
• 3
• 4
• »