Based on data from 129 vehicles, 15,051 fuel-ups and 4,440,918 miles of driving, the 2015 Ram 3500 gets a combined Avg MPG of 12.26 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 (116) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (36) Extended Crew Cab Pickup (10) Cab & Chassis - Crew Cab (1) Any Submodel Lone Star (2) ST (4) Laramie Limited (8) Big Horn (14) Laramie Longhorn (15) SLT (17) Tradesman (30) Laramie (37) Other (2)

Below you can see a distribution of the fuel-ups with 87 outliers (0.57%) removed.

Following shows the average MPG of each of the 129 vehicles in the system.

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• Ram 3500 Cummins

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2019 • 348 Fuel-ups

  Property of kdracing

• 19.7 Avg MPG

• My 3500

  2015 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Mar 2021 • 263 Fuel-ups

  Property of laynewahlberg

• 12.1 Avg MPG

• Tow Pig

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 76 Fuel-ups

  Property of 15Ecobeast

• 12.9 Avg MPG

• Dodge 3500

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2016 • 345 Fuel-ups

  Property of dstroda

• 12.3 Avg MPG

• RAM 3500

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Nov 2019 • 307 Fuel-ups

  Property of hmanbeck

• 15.6 Avg MPG

• Blue

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 83 Fuel-ups

  Property of scopous27

• 11.5 Avg MPG

• RAM

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2018 • 226 Fuel-ups

  Property of jkotila

• 15.0 Avg MPG

• My 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2024 • 149 Fuel-ups

  Property of Lisandro529

• 14.5 Avg MPG

• Big Tex

  2015 Ram 3500 ST 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2024 • 6 Fuel-ups

  Property of richardoverby

• 12.3 Avg MPG

• My BOT

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2015 • 572 Fuel-ups

  Property of BurningWire

• 12.1 Avg MPG

• Ram 3500 Surely

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2015 • 235 Fuel-ups

  Property of JaredHerzog

• 14.6 Avg MPG

• 15 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2021 • 85 Fuel-ups

  Property of robigarr

• 9.9 Avg MPG

• Kyle Ram

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Standard 6 Speed
  Added Nov 2016 • 409 Fuel-ups

  Property of Farmerroy

• 14.8 Avg MPG

• RAM 3500

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jan 2020 • 110 Fuel-ups

  Property of Guanaco1000

• 14.4 Avg MPG

• 2015 Ram 3500

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2017 • 397 Fuel-ups

  Property of lenharpd

• 18.0 Avg MPG

• Dually

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2016 • 201 Fuel-ups

  Property of yycmike

• 12.1 Avg MPG

• Ram3500

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jul 2015 • 344 Fuel-ups

  Property of LilJ

• 13.4 Avg MPG

• Steele

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2015 • 459 Fuel-ups

  Property of razorclam

• 18.0 Avg MPG

• My 3500

  2015 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Feb 2018 • 132 Fuel-ups

  Property of thoss29

• 11.3 Avg MPG

• 2015 RAM 3500

  2015 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2018 • 30 Fuel-ups

  Property of Mayes

• 11.7 Avg MPG

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