Based on data from 142 vehicles, 11,364 fuel-ups and 3,541,479 miles of driving, the 2012 Ram 3500 gets a combined Avg MPG of 12.09 with a 0.07 MPG margin of error.

Any Engine Type 5.7L V8 GAS (1) 6.7L L6 DIESEL (100) GAS (4) L6 DIESEL (31) Any Body Style Extended Cab Pickup (1) Crew Cab Pickup (26) Extended Crew Cab Pickup (7) Any Submodel ST (6) SLT (24) Laramie Longhorn (28) Laramie (46) Other (38)

Below you can see a distribution of the fuel-ups with 135 outliers (1.17%) removed.

Following shows the average MPG of each of the 142 vehicles in the system.

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• rooster

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2023 • 31 Fuel-ups

  Property of reyes_gabriel350

• 11.8 Avg MPG

• Beastie

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2020 • 190 Fuel-ups

  Property of Earl73

• 11.2 Avg MPG

• RAM 3500

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2016 • 396 Fuel-ups

  Property of Helowings60

• 13.4 Avg MPG

• Family Truckster

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2019 • 119 Fuel-ups

  Property of Arzie

• 16.5 Avg MPG

• Ram

  2012 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2022 • 46 Fuel-ups

  Property of leorstanley

• 15.5 Avg MPG

• Ram 3500 (Green 2012)

  2012 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jul 2020 • 125 Fuel-ups

  Property of BlueLghtning

• 10.2 Avg MPG

• My 3500

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2022 • 89 Fuel-ups

  Property of Jhansen312

• 12.2 Avg MPG

• Black Pearl

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2021 • 32 Fuel-ups

  Property of kuwacko

• 13.2 Avg MPG

• My 3500

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2023 • 13 Fuel-ups

  Property of williamwong1621

• 13.1 Avg MPG

• Rammy 2012 Longhorn

  2012 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2021 • 21 Fuel-ups

  Property of Locster

• 11.7 Avg MPG

• Truck

  2012 Ram 3500 DIESEL L6
  Added Feb 2014 • 39 Fuel-ups

  Property of rbretz

• 10.2 Avg MPG

• My 3500

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2021 • 46 Fuel-ups

  Property of nosparkplugs

• 12.4 Avg MPG

• My 3500

  2012 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2022 • 6 Fuel-ups

  Property of wcleveland

• 16.2 Avg MPG

• RAM 3500

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2021 • 6 Fuel-ups

  Property of mmayer

• 16.4 Avg MPG

• Summer 2022 trip

  2012 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 5 Speed
  Added Aug 2022 • 8 Fuel-ups

  Property of trevor_butte

• 11.7 Avg MPG

• My 3500

  2012 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2019 • 60 Fuel-ups

  Property of Grew72

• 14.1 Avg MPG

• XP RAM

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2012 • 200 Fuel-ups

  Property of XP

• 12.6 Avg MPG

• My 3500

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2018 • 167 Fuel-ups

  Property of Tj67

• 14.2 Avg MPG

• Tbd

  2012 Ram 3500 Laramie
  Added Mar 2022 • 20 Fuel-ups

  Property of LaMoparPower

• 14.1 Avg MPG

• Ole Bessie

  2012 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2019 • 157 Fuel-ups

  Property of sailormanrice

• 14.0 Avg MPG

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