Based on data from 84 vehicles, 6,120 fuel-ups and 2,261,751 miles of driving, the 2021 Ram 3500 gets a combined Avg MPG of 11.95 with a 0.11 MPG margin of error.

Any Engine Type 6.4L V8 GAS (8) 6.7L L6 DIESEL (71) 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 (14) Big Horn (15) Limited (16) Laramie (32)

Below you can see a distribution of the fuel-ups with 113 outliers (1.81%) removed.

Following shows the average MPG of each of the 84 vehicles in the system.

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• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2024 • 7 Fuel-ups

  Property of gerald_82

• 16.6 Avg MPG

• RAM 3500 Larimie

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2023 • 15 Fuel-ups

  Property of mdg777

• 16.7 Avg MPG

• 2021 RAM 3500

  2021 Ram 3500 Tradesman 6.4L V8 GAS Automatic 6 Speed
  Added Dec 2022 • 8 Fuel-ups

  Property of HSTWXMAN

• 11.6 Avg MPG

• Ram 3500 Lone Star

  2021 Ram 3500 Lone Star 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2022 • 28 Fuel-ups

  Property of Compujok

• 13.8 Avg MPG

• My 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2022 • 112 Fuel-ups

  Property of cam95

• 17.9 Avg MPG

• Big Blue Dually HO

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2021 • 74 Fuel-ups

  Property of Jt_Hd

• 12.8 Avg MPG

• Tow pig

  2021 Ram 3500 Limited
  Added Oct 2022 • 14 Fuel-ups

  Property of Broussss

• 8.7 Avg MPG

• Ram 3500

  2021 Ram 3500 Big Horn 6.4L V8 GAS Automatic 8 Speed Standard Cab Pickup
  Added Nov 2021 • 28 Fuel-ups

  Property of davisben

• 12.3 Avg MPG

• My 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 8 Speed
  Added Feb 2022 • 111 Fuel-ups

  Property of jrector

• 11.7 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

• 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

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