Based on data from 127 vehicles, 14,420 fuel-ups and 4,259,636 miles of driving, the 2015 Ram 3500 gets a combined Avg MPG of 12.24 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 (114) Any Body Style Standard Cab Pickup (1) Crew Cab Pickup (37) 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 (17) Tradesman (30) Laramie (36) Other (2)

Below you can see a distribution of the fuel-ups with 77 outliers (0.53%) removed.

Following shows the average MPG of each of the 127 vehicles in the system.

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• My 2015 3500

  2015 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2023 • 9 Fuel-ups

  Property of yatzee

• 12.1 Avg MPG

• Ram 3500

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Feb 2015 • 374 Fuel-ups

  Property of wjk940

• 15.8 Avg MPG

• RAM 3500

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jan 2020 • 100 Fuel-ups

  Property of Guanaco1000

• 14.6 Avg MPG

• My 3500

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2017 • 180 Fuel-ups

  Property of whiteside

• 13.6 Avg MPG

• 15 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2021 • 71 Fuel-ups

  Property of robigarr

• 9.8 Avg MPG

• Dually

  2015 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2016 • 183 Fuel-ups

  Property of yycmike

• 12.2 Avg MPG

• Ram 3500 Laramie

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2018 • 161 Fuel-ups

  Property of kaiuwe19

• 11.9 Avg MPG

• My 3500

  2015 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2016 • 338 Fuel-ups

  Property of Ehoxie

• 12.4 Avg MPG

• My Ram

  2015 Ram 3500
  Added Jun 2015 • 964 Fuel-ups

  Property of mhrcek

• 11.3 Avg MPG

• 3500 dually.

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2022 • 4 Fuel-ups

  Property of Dgroff88

• 14.2 Avg MPG

• Dolores

  2015 Ram 3500 SLT 6.4L V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Jul 2022 • 39 Fuel-ups

  Property of GPSaxophone

• 10.5 Avg MPG

• My BOT

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Sep 2015 • 527 Fuel-ups

  Property of BurningWire

• 12.1 Avg MPG

• 2015 RAM 3500

  2015 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2018 • 23 Fuel-ups

  Property of Mayes

• 11.5 Avg MPG

• RAM 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2023 • 11 Fuel-ups

  Property of JRWW

• 14.4 Avg MPG

• Big Ass Truck

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2015 • 207 Fuel-ups

  Property of BearBack

• 15.8 Avg MPG

• 2015 Ram 3500 Laramie 4x4

  2015 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2022 • 36 Fuel-ups

  Property of ThickSinnamon

• 12.5 Avg MPG

• Graybeard

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2018 • 476 Fuel-ups

  Property of brainwaste

• 12.2 Avg MPG

• My 3500

  2015 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2019 • 144 Fuel-ups

  Property of ac_sheldon

• 16.3 Avg MPG

• Graybeard DEF

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2018 • 38 Fuel-ups

  Property of brainwaste

• 450.5 Avg MPG

• My 3500

  2015 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2022 • 93 Fuel-ups

  Property of jcdean86

• 15.5 Avg MPG

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