Based on data from 94 vehicles, 6,953 fuel-ups and 1,799,995 miles of driving, the 2009 GMC Sierra 1500 gets a combined Avg MPG of 14.51 with a 0.08 MPG margin of error.

Any Engine Type 4.3L V6 GAS (2) 4.8L V8 GAS (15) 5.3L V8 FLEX (26) 5.3L V8 GAS (23) 6.0L V8 ELECTRIC/GAS (2) 6.0L V8 FULL HYBRID EV-GAS (FHEV) (1) 6.0L V8 GAS (2) 6.2L V8 FLEX (3) GAS (1) V8 FLEX (6) V8 GAS (9) Any Body Style Standard Cab Pickup (2) Extended Cab Pickup (11) Crew Cab Pickup (8) Extended Crew Cab Pickup (1) Cab & Chassis - Crew Cab (1) Any Submodel Hybrid (3) Denali (3) SL (4) WT (12) SLT (15) SLE (38) Other (19)

Below you can see a distribution of the fuel-ups with 102 outliers (1.45%) removed.

Following shows the average MPG of each of the 94 vehicles in the system.

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• My Sierra 1500

  2009 GMC Sierra 1500 Denali 6.2L V8 FLEX Automatic 6 Speed Cab & Chassis - Crew Cab
  Added Nov 2017 • 61 Fuel-ups

  Property of brasilmichael

• 13.5 Avg MPG

• Sierra

  2009 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 86 Fuel-ups

  Property of 87z24bob

• 11.8 Avg MPG

• Gmc

  2009 GMC Sierra 1500 SLE 6.0L V8 GAS Automatic 6 Speed
  Added May 2018 • 236 Fuel-ups

  Property of misteramo

• 13.5 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
  Added Jul 2018 • 51 Fuel-ups

  Property of csealleo

• 13.5 Avg MPG

• Dale

  2009 GMC Sierra 1500 WT 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jun 2019 • 3 Fuel-ups

  Property of RedWonder

• 13.3 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
  Added Jun 2017 • 105 Fuel-ups

  Property of jnk_pta

• 15.4 Avg MPG

• '09 Sierra

  2009 GMC Sierra 1500 Custom Submodel V8 GAS
  Added Jan 2014 • 355 Fuel-ups

  Property of drw4747

• 15.3 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 4 Speed
  Added Oct 2017 • 113 Fuel-ups

  Property of nikojoy

• 14.5 Avg MPG

• Sierra

  2009 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Feb 2021 • 319 Fuel-ups

  Property of scottebarnard

• 16.6 Avg MPG

• Phil

  2009 GMC Sierra 1500 WT 5.3L V8 FLEX Automatic 6 Speed
  Added May 2019 • 6 Fuel-ups

  Property of unsung-gong

• 14.2 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
  Added Aug 2017 • 46 Fuel-ups

  Property of b4him

• 14.8 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 WT 4.8L V8 GAS Automatic 6 Speed
  Added May 2018 • 10 Fuel-ups

  Property of SappTree

• 15.7 Avg MPG

• XXX 2009 GMC Sierra 1500 SLT

  2009 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 4 Speed
  Added Mar 2017 • 144 Fuel-ups

  Property of blrains706

• 15.2 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 18 Fuel-ups

  Property of kollisai

• 13.5 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 17 Fuel-ups

  Property of jlcantelon

• 12.7 Avg MPG

• Truck

  2009 GMC Sierra 1500 Hybrid 6.0L V8 ELECTRIC/GAS Automatic 4 Speed
  Added Jun 2017 • 51 Fuel-ups

  Property of tnwheeler

• 15.8 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SL 4.8L V8 GAS Automatic 4 Speed
  Added Nov 2017 • 9 Fuel-ups

  Property of trevst

• 16.6 Avg MPG

• My Sierra 1500

  2009 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 4 Speed
  Added Dec 2017 • 15 Fuel-ups

  Property of austin98

• 13.3 Avg MPG

• GMC Sierra

  2009 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Oct 2017 • 103 Fuel-ups

  Property of ogema1912

• 12.6 Avg MPG

• Sierra

  2009 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
  Added Nov 2013 • 66 Fuel-ups

  Property of shiny09

• 11.4 Avg MPG

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