Based on data from 127 vehicles, 10,369 fuel-ups and 3,141,246 miles of driving, the 2018 Ram 3500 gets a combined Avg MPG of 12.97 with a 0.08 MPG margin of error.

Any Engine Type 5.7L V8 GAS (1) 6.4L V8 GAS (6) 6.7L L6 DIESEL (105) L6 DIESEL (3) V6 GAS (2) V8 GAS (1) Any Body Style Crew Cab Pickup (33) Extended Cargo Van (2) Extended Crew Cab Pickup (5) Cab & Chassis - Crew Cab (2) Any Submodel Promaster (2) ST (3) Laramie Longhorn (3) Laramie Limited (5) Base (6) Limited (6) SLT (6) Big Horn (12) Tradesman (24) Laramie (59) Other (1)

Below you can see a distribution of the fuel-ups with 162 outliers (1.54%) removed.

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

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• My Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2018 • 251 Fuel-ups

  Property of Flounder90

• 14.9 Avg MPG

• ‘18 RAM 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2019 • 244 Fuel-ups

  Property of jwindbigler

• 8.9 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2017 • 358 Fuel-ups

  Property of srt10ss

• 15.8 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2019 • 359 Fuel-ups

  Property of rbro7752

• 11.6 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2023 • 13 Fuel-ups

  Property of Jken1377

• 10.4 Avg MPG

• Dodge 2018

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2023 • 137 Fuel-ups

  Property of avgilmore

• 12.3 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added May 2022 • 114 Fuel-ups

  Property of nielsturtevant

• 15.3 Avg MPG

• Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2019 • 95 Fuel-ups

  Property of Motorcycleman50

• 11.7 Avg MPG

• My Awesome 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 620 Fuel-ups

  Property of SDCowboy

• 11.9 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2019 • 205 Fuel-ups

  Property of fordraceboy

• 15.7 Avg MPG

• RAM 3500

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2018 • 197 Fuel-ups

  Property of Tchil

• 10.0 Avg MPG

• Silver Bullet

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
  Added May 2018 • 208 Fuel-ups

  Property of MrGadget365

• 19.4 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added Apr 2019 • 195 Fuel-ups

  Property of theotherTALLguy

• 18.4 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2024 • 12 Fuel-ups

  Property of yhosaka

• 13.2 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.4L V8 GAS Automatic 6 Speed
  Added Mar 2024 • 7 Fuel-ups

  Property of printman812

• 10.1 Avg MPG

• 2018 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2023 • 10 Fuel-ups

  Property of Sasquash

• 12.6 Avg MPG

• My 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2019 • 144 Fuel-ups

  Property of MasterOfNothing

• 16.4 Avg MPG

• Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2018 • 337 Fuel-ups

  Property of scrubs

• 13.6 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2022 • 25 Fuel-ups

  Property of wgasa84

• 10.6 Avg MPG

• RAM

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2023 • 28 Fuel-ups

  Property of undrcvr_camaro

• 15.4 Avg MPG

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