Based on data from 129 vehicles, 11,206 fuel-ups and 3,390,865 miles of driving, the 2018 Ram 3500 gets a combined Avg MPG of 12.94 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 (107) 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 (4) Laramie Limited (5) Base (6) Limited (6) SLT (6) Big Horn (13) Tradesman (25) Laramie (58) Other (1)

Below you can see a distribution of the fuel-ups with 172 outliers (1.51%) removed.

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

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• 3500-ISH

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2024 • 50 Fuel-ups

  Property of Ishter86

• 14.2 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2019 • 424 Fuel-ups

  Property of rbro7752

• 11.8 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2019 • 233 Fuel-ups

  Property of fordraceboy

• 15.7 Avg MPG

• Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2018 • 355 Fuel-ups

  Property of scrubs

• 13.5 Avg MPG

• Taco Bear

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 109 Fuel-ups

  Property of Mythos

• 13.8 Avg MPG

• Ram Jam

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

  Property of redclifford

• 15.5 Avg MPG

• 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2019 • 209 Fuel-ups

  Property of gficken

• 11.4 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2019 • 54 Fuel-ups

  Property of atlsouth

• 12.5 Avg MPG

• My Awesome 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 673 Fuel-ups

  Property of SDCowboy

• 11.8 Avg MPG

• My Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2018 • 272 Fuel-ups

  Property of Flounder90

• 14.8 Avg MPG

• Ram Truck DIESEL!!

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jun 2020 • 126 Fuel-ups

  Property of karrynna

• 14.4 Avg MPG

• Silver Bullet

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
  Added May 2018 • 268 Fuel-ups

  Property of MrGadget365

• 18.7 Avg MPG

• Ram 3500 Megacab Limited Dually 4x4

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2019 • 213 Fuel-ups

  Property of sifactor

• 11.0 Avg MPG

• Work Truck

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2022 • 29 Fuel-ups

  Property of jarrett85

• 39.4 Avg MPG

• RAM

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2018 • 244 Fuel-ups

  Property of mrlon

• 13.5 Avg MPG

• Mega ram

  2018 Ram 3500 Laramie L6 DIESEL
  Added Jan 2018 • 431 Fuel-ups

  Property of Mv3111

• 16.2 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2022 • 227 Fuel-ups

  Property of RanchHand

• 10.2 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2024 • 41 Fuel-ups

  Property of yhosaka

• 13.5 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2017 • 383 Fuel-ups

  Property of srt10ss

• 15.8 Avg MPG

• My 3500

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2024 • 19 Fuel-ups

  Property of pdxkid

• 13.6 Avg MPG

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