Based on data from 80 vehicles, 5,279 fuel-ups and 1,943,452 miles of driving, the 2021 Ram 3500 gets a combined Avg MPG of 12.00 with a 0.12 MPG margin of error.

Any Engine Type 6.4L V8 GAS (8) 6.7L L6 DIESEL (67) Any Body Style Standard Cab Pickup (2) Crew Cab Pickup (12) Cab & Chassis (1) Extended Crew Cab Pickup (5) Any Submodel Lone Star (1) Laramie Longhorn (6) Tradesman (13) Big Horn (15) Limited (16) Laramie (29)

Below you can see a distribution of the fuel-ups with 94 outliers (1.75%) removed.

Following shows the average MPG of each of the 80 vehicles in the system.

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• Jarvis

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2021 • 154 Fuel-ups

  Property of jamessgibson

• 10.7 Avg MPG

• #L10 (Weight Truck)

  2021 Ram 3500 Tradesman 6.4L V8 GAS Automatic 8 Speed Cab & Chassis
  Added Aug 2022 • 31 Fuel-ups

  Property of ASGinc

• 13.9 Avg MPG

• White Riot

  2021 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2021 • 49 Fuel-ups

  Property of b16gsr

• 11.1 Avg MPG

• BBJ DEF

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2021 • 33 Fuel-ups

  Property of tcorno43

• 459.5 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 102 Fuel-ups

  Property of tvahey

• 10.3 Avg MPG

• Ram 3500

  2021 Ram 3500 Laramie 6.4L V8 GAS Automatic 8 Speed
  Added Apr 2021 • 71 Fuel-ups

  Property of tmkrunner

• 9.5 Avg MPG

• My 3500

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 8 Speed
  Added Mar 2023 • 13 Fuel-ups

  Property of Crop_Guy

• 11.2 Avg MPG

• Doug’s Big Truck

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 8 Speed
  Added Mar 2022 • 6 Fuel-ups

  Property of dandefrancis

• 12.9 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Feb 2022 • 87 Fuel-ups

  Property of Ridley13

• 14.6 Avg MPG

• Beast

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added May 2021 • 67 Fuel-ups

  Property of samona

• 12.6 Avg MPG

• RAM 3500

  2021 Ram 3500 Tradesman 6.4L V8 GAS Automatic 8 Speed Standard Cab Pickup
  Added Apr 2021 • 160 Fuel-ups

  Property of ramblinChet

• 12.4 Avg MPG

• HO Cummins 3500 Megacab SRW

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 129 Fuel-ups

  Property of toth

• 12.0 Avg MPG

• My 3500

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 64 Fuel-ups

  Property of rsabol77

• 12.6 Avg MPG

• Big Red

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Dec 2022 • 27 Fuel-ups

  Property of PatriotJ

• 17.7 Avg MPG

• My 3500

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2021 • 28 Fuel-ups

  Property of dknice70

• 14.7 Avg MPG

• 2021 Red Ram 3500 Duelly

  2021 Ram 3500 Limited
  Added Jun 2021 • 74 Fuel-ups

  Property of bpatton95

• 11.4 Avg MPG

• My 3500

  2021 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2022 • 42 Fuel-ups

  Property of SkyMutt

• 15.1 Avg MPG

• Dodge Ram 2021

  2021 Ram 3500 Tradesman 6.4L V8 GAS Automatic 8 Speed Crew Cab Pickup
  Added Jan 2022 • 7 Fuel-ups

  Property of jfor

• 12.4 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 36 Fuel-ups

  Property of Low-Fi

• 15.0 Avg MPG

• Ram 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2022 • 76 Fuel-ups

  Property of jblythe

• 12.6 Avg MPG

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