Based on data from 43 vehicles, 2,960 fuel-ups and 903,673 miles of driving, the 2005 Chevrolet Avalanche 1500 gets a combined Avg MPG of 13.82 with a 0.11 MPG margin of error.

Any Engine Type 5.3L V8 FLEX (13) 5.3L V8 GAS (24) V8 FLEX (5) V8 GAS (1) Any Body Style Crew Cab Pickup (12) Extended Crew Cab Pickup (1) Any Submodel Z66 (1) Base (2) LT (3) LS (7) Z71 (24) Other (6)

Below you can see a distribution of the fuel-ups with 200 outliers (6.33%) removed.

Following shows the average MPG of each of the 43 vehicles in the system.

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• Avalanche

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 FLEX Automatic 4 Speed Crew Cab Pickup
  Added Dec 2023 • 35 Fuel-ups

  Property of Altimator

• 15.4 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Nov 2017 • 192 Fuel-ups

  Property of thornbri

• 12.5 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Dec 2019 • 184 Fuel-ups

  Property of 97dakota99

• 13.0 Avg MPG

• GNARL

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 FLEX Automatic 4 Speed Crew Cab Pickup
  Added Oct 2018 • 232 Fuel-ups

  Property of caldep

• 17.8 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2016 • 331 Fuel-ups

  Property of Jetrot4

• 14.7 Avg MPG

• Timex

  2005 Chevrolet Avalanche 1500 LS 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Jan 2018 • 133 Fuel-ups

  Property of SafetyPete

• 16.0 Avg MPG

• Avalanche

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 353 Fuel-ups

  Property of daveventi

• 16.7 Avg MPG

• The Mule

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added May 2023 • 11 Fuel-ups

  Property of Skellingthorpe

• 19.1 Avg MPG

• Alvan

  2005 Chevrolet Avalanche 1500 LS 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jul 2021 • 185 Fuel-ups

  Property of SmBill

• 14.1 Avg MPG

• 2005 Avalanche

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic Crew Cab Pickup
  Added Nov 2020 • 58 Fuel-ups

  Property of doudot

• 13.7 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2023 • 5 Fuel-ups

  Property of joesauto24

• 11.8 Avg MPG

• Avalanche

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed Crew Cab Pickup
  Added May 2021 • 89 Fuel-ups

  Property of abei58103

• 16.8 Avg MPG

• Avalanche 1500

  2005 Chevrolet Avalanche 1500 LS 5.3L V8 GAS Automatic 4 Speed
  Added Jan 2016 • 130 Fuel-ups

  Property of Jace600

• 14.7 Avg MPG

• Chevy Avalanche

  2005 Chevrolet Avalanche 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 104 Fuel-ups

  Property of Darb

• 11.9 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Oct 2021 • 24 Fuel-ups

  Property of deanna1964

• 21.5 Avg MPG

• Avalanche

  2005 Chevrolet Avalanche 1500 LS 5.3L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 167 Fuel-ups

  Property of PsiKocsis

• 12.4 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 FLEX Automatic 4 Speed
  Added Aug 2017 • 75 Fuel-ups

  Property of thebassoonman

• 15.4 Avg MPG

• Avy

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 FLEX Automatic 4 Speed Crew Cab Pickup
  Added Jan 2019 • 18 Fuel-ups

  Property of TheChadPgh

• 19.4 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 Z71 5.3L V8 GAS Automatic 4 Speed
  Added Feb 2020 • 29 Fuel-ups

  Property of shawn2776

• 14.1 Avg MPG

• My Avalanche 1500

  2005 Chevrolet Avalanche 1500 LT 5.3L V8 GAS Automatic 4 Speed
  Added Jul 2019 • 6 Fuel-ups

  Property of Lolson27

• 13.5 Avg MPG

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