Based on data from 127 vehicles, 10,436 fuel-ups and 3,164,248 miles of driving, the 2018 Ram 3500 gets a combined Avg MPG of 12.96 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 165 outliers (1.56%) removed.

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

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• Silver Bullet

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
  Added May 2018 • 211 Fuel-ups

  Property of MrGadget365

• 19.3 Avg MPG

• Ram Truck DIESEL!!

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Jun 2020 • 114 Fuel-ups

  Property of karrynna

• 14.4 Avg MPG

• RAM

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2023 • 33 Fuel-ups

  Property of undrcvr_camaro

• 15.3 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2024 • 15 Fuel-ups

  Property of yhosaka

• 14.0 Avg MPG

• 18 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2021 • 121 Fuel-ups

  Property of cdntaco

• 16.5 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2019 • 364 Fuel-ups

  Property of rbro7752

• 11.6 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2022 • 150 Fuel-ups

  Property of RanchHand

• 10.4 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added May 2020 • 101 Fuel-ups

  Property of MolokoMan

• 13.5 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added Apr 2019 • 198 Fuel-ups

  Property of theotherTALLguy

• 18.4 Avg MPG

• Taco Bear

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 81 Fuel-ups

  Property of Mythos

• 14.2 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2017 • 363 Fuel-ups

  Property of srt10ss

• 15.8 Avg MPG

• Ram 3500 Megacab Limited Dually 4x4

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2019 • 206 Fuel-ups

  Property of sifactor

• 10.9 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2019 • 206 Fuel-ups

  Property of fordraceboy

• 15.7 Avg MPG

• 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Nov 2019 • 186 Fuel-ups

  Property of gficken

• 11.1 Avg MPG

• My Awesome 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 623 Fuel-ups

  Property of SDCowboy

• 12.0 Avg MPG

• Work Truck

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2022 • 23 Fuel-ups

  Property of jarrett85

• 39.6 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2023 • 26 Fuel-ups

  Property of Jken1377

• 9.9 Avg MPG

• Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2019 • 98 Fuel-ups

  Property of Motorcycleman50

• 11.7 Avg MPG

• My 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2020 • 213 Fuel-ups

  Property of Rick6643

• 14.3 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added May 2022 • 115 Fuel-ups

  Property of nielsturtevant

• 15.4 Avg MPG

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