Based on data from 131 vehicles, 11,600 fuel-ups and 3,502,076 miles of driving, the 2018 Ram 3500 gets a combined Avg MPG of 12.93 with a 0.08 MPG margin of error.

Any Engine Type 5.7L V8 GAS (1) 6.4L V8 GAS (7) 6.7L L6 DIESEL (108) L6 DIESEL (4) 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 (27) Laramie (58) Other (1)

Below you can see a distribution of the fuel-ups with 182 outliers (1.54%) removed.

Following shows the average MPG of each of the 131 vehicles in the system.

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• Ram 3500 Megacab Limited Dually 4x4

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2019 • 229 Fuel-ups

  Property of sifactor

• 10.8 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2022 • 239 Fuel-ups

  Property of RanchHand

• 10.4 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2024 • 60 Fuel-ups

  Property of yhosaka

• 13.6 Avg MPG

• 2018 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2023 • 31 Fuel-ups

  Property of Sasquash

• 10.9 Avg MPG

• My 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2019 • 171 Fuel-ups

  Property of MasterOfNothing

• 16.5 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added May 2022 • 163 Fuel-ups

  Property of nielsturtevant

• 15.0 Avg MPG

• 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2019 • 218 Fuel-ups

  Property of gficken

• 11.5 Avg MPG

• RAM

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2023 • 81 Fuel-ups

  Property of undrcvr_camaro

• 14.9 Avg MPG

• My 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2020 • 237 Fuel-ups

  Property of Rick6643

• 14.4 Avg MPG

• RAM

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2018 • 266 Fuel-ups

  Property of mrlon

• 13.6 Avg MPG

• Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2018 • 370 Fuel-ups

  Property of scrubs

• 13.5 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2017 • 394 Fuel-ups

  Property of srt10ss

• 15.8 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added Apr 2019 • 227 Fuel-ups

  Property of theotherTALLguy

• 18.3 Avg MPG

• Ram 3500

  2018 Ram 3500 V8 GAS Automatic 6 Speed Crew Cab Pickup
  Added Oct 2020 • 190 Fuel-ups

  Property of trappedinks

• 9.6 Avg MPG

• Dodge 2018

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Mar 2023 • 191 Fuel-ups

  Property of avgilmore

• 12.7 Avg MPG

• Mega ram

  2018 Ram 3500 Laramie L6 DIESEL
  Added Jan 2018 • 442 Fuel-ups

  Property of Mv3111

• 16.2 Avg MPG

• My Awesome 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 684 Fuel-ups

  Property of SDCowboy

• 11.8 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.4L V8 GAS Automatic 6 Speed
  Added Mar 2025 • 10 Fuel-ups

  Property of Elmer_88

• 10.2 Avg MPG

• Work Truck

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2022 • 32 Fuel-ups

  Property of jarrett85

• 41.5 Avg MPG

• Taco Bear

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 143 Fuel-ups

  Property of Mythos

• 13.6 Avg MPG

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