Based on data from 241 vehicles, 21,481 fuel-ups and 6,907,887 miles of driving, the 2015 Ram 2500 gets a combined Avg MPG of 14.60 with a 0.05 MPG margin of error.

Any Engine Type 5.7L V8 GAS (8) 6.4L V8 GAS (46) 6.7L L6 DIESEL (166) H6 DIESEL (1) L6 DIESEL (3) Any Body Style Standard Cab Pickup (5) Crew Cab Pickup (62) Extended Crew Cab Pickup (13) Cab & Chassis - Crew Cab (2) Any Submodel Hemi Sport (1) ST (3) Power Wagon (7) Outdoorsman (8) Lone Star (9) Laramie Longhorn (13) Laramie Mega Cab (13) Laramie Limited (15) SLT (21) Big Horn (25) Tradesman (46) Laramie (76) Other (4)

Below you can see a distribution of the fuel-ups with 380 outliers (1.74%) removed.

Following shows the average MPG of each of the 241 vehicles in the system.

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• Ram 2500

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 153 Fuel-ups

  Property of S2CPitts

• 15.4 Avg MPG

• Ram 2500

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Feb 2017 • 348 Fuel-ups

  Property of breuker007

• 14.7 Avg MPG

• My 2500

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2023 • 121 Fuel-ups

  Property of lbriseno

• 14.6 Avg MPG

• Blue Ram

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Feb 2016 • 226 Fuel-ups

  Property of johal89

• 15.0 Avg MPG

• Clifford

  2015 Ram 2500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2025 • 14 Fuel-ups

  Property of Tyler_Lee

• 16.9 Avg MPG

• Wigwam

  2015 Ram 2500 Tradesman 6.7L DIESEL L6 Automatic 6 Crew Cab Pickup (4 Door)
  Added Mar 2015 • 85 Fuel-ups

  Property of foxsprings

• 13.4 Avg MPG

• Laramie Wagon

  2015 Ram 2500 Laramie Mega Cab
  Added Jan 2023 • 93 Fuel-ups

  Property of Morgantj13

• 11.3 Avg MPG

• My 2500

  2015 Ram 2500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2023 • 65 Fuel-ups

  Property of abutlercihcsp

• 16.7 Avg MPG

• My 2500

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2018 • 311 Fuel-ups

  Property of TomJolson

• 13.2 Avg MPG

• Ram 2500

  2015 Ram 2500 SLT 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2018 • 397 Fuel-ups

  Property of lawton398

• 17.9 Avg MPG

• Ram 2500

  2015 Ram 2500 Lone Star 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2018 • 276 Fuel-ups

  Property of NavKev

• 15.4 Avg MPG

• Vader

  2015 Ram 2500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Dec 2018 • 269 Fuel-ups

  Property of oaklanefarm

• 12.9 Avg MPG

• Big Rhonda

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2021 • 177 Fuel-ups

  Property of cthorne6

• 14.7 Avg MPG

• Darth Vader

  2015 Ram 2500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added May 2015 • 322 Fuel-ups

  Property of coacheddie

• 14.1 Avg MPG

• Ram

  2015 Ram 2500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jul 2015 • 352 Fuel-ups

  Property of royta

• 15.2 Avg MPG

• My 2500

  2015 Ram 2500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2022 • 45 Fuel-ups

  Property of sagibson06

• 13.1 Avg MPG

• Ramsey II - 2500 Crew Cab 4x4 6.5' Bed

  2015 Ram 2500 ST 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2023 • 59 Fuel-ups

  Property of SpidRacer

• 17.8 Avg MPG

• Smokey

  2015 Ram 2500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2021 • 67 Fuel-ups

  Property of grymrgn

• 13.0 Avg MPG

• My 2500

  2015 Ram 2500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2018 • 392 Fuel-ups

  Property of skiman26

• 13.4 Avg MPG

• Brian's Ram 2500

  2015 Ram 2500 Outdoorsman 6.4L V8 GAS Automatic 6 Speed
  Added Aug 2016 • 517 Fuel-ups

  Property of bmc4041

• 11.3 Avg MPG

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