Based on data from 129 vehicles, 11,186 fuel-ups and 3,385,647 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 • 45 Fuel-ups

  Property of Ishter86

• 14.7 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

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added Apr 2019 • 217 Fuel-ups

  Property of theotherTALLguy

• 18.3 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2019 • 420 Fuel-ups

  Property of rbro7752

• 11.8 Avg MPG

• 18 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2021 • 136 Fuel-ups

  Property of cdntaco

• 16.6 Avg MPG

• 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2019 • 208 Fuel-ups

  Property of gficken

• 11.4 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2019 • 232 Fuel-ups

  Property of fordraceboy

• 15.7 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added May 2022 • 153 Fuel-ups

  Property of nielsturtevant

• 14.9 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added May 2020 • 128 Fuel-ups

  Property of MolokoMan

• 13.5 Avg MPG

• Ram 3500

  2018 Ram 3500 V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Oct 2020 • 186 Fuel-ups

  Property of trappedinks

• 9.6 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

• 2018 Ram 3500 SLT

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2020 • 86 Fuel-ups

  Property of TrevorR_EcoDiesel

• 12.5 Avg MPG

• Work Truck

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2022 • 28 Fuel-ups

  Property of jarrett85

• 40.0 Avg MPG

• Taco Bear

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 107 Fuel-ups

  Property of Mythos

• 13.8 Avg MPG

• RAM

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2018 • 243 Fuel-ups

  Property of mrlon

• 13.5 Avg MPG

• My Awesome 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 672 Fuel-ups

  Property of SDCowboy

• 11.9 Avg MPG

• Ram Jam

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2024 • 5 Fuel-ups

  Property of redclifford

• 15.4 Avg MPG

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