Based on data from 20 vehicles, 952 fuel-ups and 240,618 miles of driving, the 2003 GMC Sonoma gets a combined Avg MPG of 17.91 with a 0.22 MPG margin of error.

Any Engine Type 2.2L L4 GAS (2) 4.3L V6 GAS (11) L4 GAS (2) V6 GAS (4) Any Body Style Standard Cab Pickup (2) Extended Cab Pickup (6) Any Submodel SL (1) SLS (13) Other (6)

Below you can see a distribution of the fuel-ups with 50 outliers (4.99%) removed.

Following shows the average MPG of each of the 20 vehicles in the system.

• '03 Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed
  Added Nov 2014 • 47 Fuel-ups

  Property of fear24

• 18.7 Avg MPG

• Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed Extended Cab Pickup
  Added Aug 2024 • 7 Fuel-ups

  Property of paulgraz

• 16.6 Avg MPG

• Silver Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed Standard Cab Pickup
  Added Aug 2019 • 106 Fuel-ups

  Property of Slimjim00

• 18.3 Avg MPG

• Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 347 Fuel-ups

  Property of typhoon672

• 19.8 Avg MPG

• Sonoma

  2003 GMC Sonoma SL 2.2L L4 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jun 2018 • 168 Fuel-ups

  Property of ramb0unit

• 21.6 Avg MPG

• My Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed
  Added Sep 2022 • 10 Fuel-ups

  Property of Caleb_Lubbers

• 13.8 Avg MPG

• Buck

  2003 GMC Sonoma SLS 2.2L L4 GAS Automatic 4 Speed Standard Cab Pickup
  Added Jan 2021 • 38 Fuel-ups

  Property of SammieFord17

• 18.4 Avg MPG

• Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed Extended Cab Pickup
  Added Dec 2021 • 10 Fuel-ups

  Property of kyleford47

• 13.6 Avg MPG

• Sonoma

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed Extended Cab Pickup
  Added Mar 2020 • 12 Fuel-ups

  Property of deezdad

• 16.5 Avg MPG

• Wayne

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jul 2016 • 51 Fuel-ups

  Property of LordGlic

• 16.8 Avg MPG

• TheGMC

  2003 GMC Sonoma SLS
  Added Oct 2016 • 69 Fuel-ups

  Property of sjaskow

• 15.1 Avg MPG

• Stepside

  2003 GMC Sonoma SLS 4.3L V6 GAS Automatic 4 Speed
  Added Aug 2012 • 57 Fuel-ups

  Property of sonomaguy

• 19.4 Avg MPG

• SonoZeke

  2003 GMC Sonoma SLS 4.3L GAS V6 Automatic 4 Extended Cab Pickup (3 Door)
  Added Oct 2014 • 16 Fuel-ups

  Property of ZukiFuel

• 19.2 Avg MPG

• 03 zr2

  2003 GMC Sonoma SLS 4.3L GAS V6 Automatic 4 Extended Cab Pickup (3 Door)
  Added Aug 2014 • 12 Fuel-ups

  Property of sunsfandevin

• 20.3 Avg MPG

• Diablo

  2003 GMC Sonoma GAS V6
  Added May 2013 • 59 Fuel-ups

  Property of cmontoya79

• 15.7 Avg MPG

• Little truck

  2003 GMC Sonoma GAS V6
  Added Feb 2014 • 5 Fuel-ups

  Property of tealhatch

• 12.8 Avg MPG

• Sonoma

  2003 GMC Sonoma GAS V6
  Added Aug 2013 • 12 Fuel-ups

  Property of wehdawg2

• 13.0 Avg MPG

• MonsterTruck

  2003 GMC Sonoma GAS L4
  Added Oct 2013 • 8 Fuel-ups

  Property of paddyh

• 28.7 Avg MPG

• The truck

  2003 GMC Sonoma GAS L4
  Added Aug 2012 • 3 Fuel-ups

  Property of quincy

• 25.0 Avg MPG

• Sonoma

  2003 GMC Sonoma GAS V6
  Added Jan 2009 • 46 Fuel-ups

  Property of Neil

• 18.2 Avg MPG