Based on data from 129 vehicles, 11,284 fuel-ups and 3,413,058 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 175 outliers (1.53%) removed.

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

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• Oma's Truck

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Cab & Chassis - Crew Cab
  Added May 2018 • 271 Fuel-ups

  Property of MrGadget365

• 18.8 Avg MPG

• 18 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2021 • 138 Fuel-ups

  Property of cdntaco

• 16.6 Avg MPG

• My 3500

  2018 Ram 3500 Laramie Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2019 • 435 Fuel-ups

  Property of rbro7752

• 11.7 Avg MPG

• 3500-ISH

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2024 • 69 Fuel-ups

  Property of Ishter86

• 12.7 Avg MPG

• 2018 Ram 3500 SLT

  2018 Ram 3500 SLT 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2020 • 89 Fuel-ups

  Property of TrevorR_EcoDiesel

• 12.5 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2017 • 386 Fuel-ups

  Property of srt10ss

• 15.8 Avg MPG

• My 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2022 • 24 Fuel-ups

  Property of taylorcubbedge

• 14.4 Avg MPG

• Taco Bear

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2023 • 112 Fuel-ups

  Property of Mythos

• 13.8 Avg MPG

• Mega ram

  2018 Ram 3500 Laramie L6 DIESEL
  Added Jan 2018 • 434 Fuel-ups

  Property of Mv3111

• 16.2 Avg MPG

• RAM

  2018 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2023 • 63 Fuel-ups

  Property of undrcvr_camaro

• 14.8 Avg MPG

• Ram Jam

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Oct 2024 • 9 Fuel-ups

  Property of redclifford

• 15.3 Avg MPG

• Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2019 • 235 Fuel-ups

  Property of fordraceboy

• 15.7 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Oct 2022 • 34 Fuel-ups

  Property of wgasa84

• 10.4 Avg MPG

• My Ram 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2018 • 274 Fuel-ups

  Property of Flounder90

• 14.7 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added Apr 2019 • 219 Fuel-ups

  Property of theotherTALLguy

• 18.3 Avg MPG

• My 3500

  2018 Ram 3500 Tradesman 6.7L L6 DIESEL Manual 6 Speed
  Added May 2022 • 155 Fuel-ups

  Property of nielsturtevant

• 14.9 Avg MPG

• My Awesome 2018 Ram 3500

  2018 Ram 3500 Big Horn 6.4L V8 GAS Automatic 6 Speed
  Added Jan 2018 • 675 Fuel-ups

  Property of SDCowboy

• 11.8 Avg MPG

• 2018 Ram 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2024 • 44 Fuel-ups

  Property of yhosaka

• 13.5 Avg MPG

• 2018 3500

  2018 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Dec 2023 • 25 Fuel-ups

  Property of Sasquash

• 10.8 Avg MPG

• Ram 3500

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

  Property of scrubs

• 13.6 Avg MPG

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