Based on data from 125 vehicles, 13,736 fuel-ups and 4,054,499 miles of driving, the 2015 Ram 3500 gets a combined Avg MPG of 12.06 with a 0.08 MPG margin of error.

Any Engine Type 5.7L V8 GAS (1) 6.4L V8 GAS (9) 6.7L L6 DIESEL (112) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (39) Extended Crew Cab Pickup (9) Cab & Chassis - Crew Cab (1) Any Submodel Lone Star (2) ST (3) Laramie Limited (8) Big Horn (14) Laramie Longhorn (15) SLT (16) Tradesman (28) Laramie (37) Other (2)

Below you can see a distribution of the fuel-ups with 70 outliers (0.51%) removed.

Following shows the average MPG of each of the 125 vehicles in the system.

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• Big Ass Truck

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2015 • 197 Fuel-ups

  Property of BearBack

• 15.8 Avg MPG

• Ram 3500 Cummins

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2019 • 292 Fuel-ups

  Property of kdracing

• 19.6 Avg MPG

• Dodge 3500

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2016 • 292 Fuel-ups

  Property of dstroda

• 16.1 Avg MPG

• Kyle Ram

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Standard 6 Speed
  Added Nov 2016 • 356 Fuel-ups

  Property of Farmerroy

• 14.9 Avg MPG

• My 3500

  2015 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Mar 2021 • 154 Fuel-ups

  Property of laynewahlberg

• 12.2 Avg MPG

• Dually

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2016 • 168 Fuel-ups

  Property of yycmike

• 12.2 Avg MPG

• My 3500

  2015 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2016 • 320 Fuel-ups

  Property of Ehoxie

• 12.4 Avg MPG

• Ram3500

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jul 2015 • 292 Fuel-ups

  Property of LilJ

• 13.6 Avg MPG

• Blue belle

  2015 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2016 • 219 Fuel-ups

  Property of kriegs

• 12.9 Avg MPG

• My 3500

  2015 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2019 • 142 Fuel-ups

  Property of ac_sheldon

• 16.3 Avg MPG

• My 3500

  2015 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Feb 2018 • 111 Fuel-ups

  Property of thoss29

• 11.4 Avg MPG

• Blue

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 5 Fuel-ups

  Property of scopous27

• 12.6 Avg MPG

• Tow Pig

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 7 Fuel-ups

  Property of 15Ecobeast

• 13.8 Avg MPG

• Ram 3500 Surely

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2015 • 215 Fuel-ups

  Property of JaredHerzog

• 14.7 Avg MPG

• 15 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2021 • 51 Fuel-ups

  Property of robigarr

• 9.6 Avg MPG

• Steele

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2015 • 386 Fuel-ups

  Property of razorclam

• 17.9 Avg MPG

• 2015 Ram 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2023 • 7 Fuel-ups

  Property of gsmann

• 14.8 Avg MPG

• 2015 Ram 3500 Laramie 4x4

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2022 • 20 Fuel-ups

  Property of ThickSinnamon

• 12.3 Avg MPG

• RAM 3500

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jan 2020 • 88 Fuel-ups

  Property of Guanaco1000

• 14.8 Avg MPG

• Ram 3500

  2015 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Oct 2017 • 121 Fuel-ups

  Property of MarkErway

• 13.1 Avg MPG

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