Based on data from 86 vehicles, 6,274 fuel-ups and 2,326,438 miles of driving, the 2021 Ram 3500 gets a combined Avg MPG of 11.98 with a 0.11 MPG margin of error.

Any Engine Type 6.4L V8 GAS (8) 6.7L L6 DIESEL (73) Any Body Style Standard Cab Pickup (2) Crew Cab Pickup (13) Cab & Chassis (1) Extended Crew Cab Pickup (5) Any Submodel Lone Star (1) Laramie Longhorn (6) Big Horn (15) Limited (16) Tradesman (16) Laramie (32)

Below you can see a distribution of the fuel-ups with 117 outliers (1.83%) removed.

Following shows the average MPG of each of the 86 vehicles in the system.

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• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 378 Fuel-ups

  Property of taterdude

• 11.7 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2024 • 21 Fuel-ups

  Property of BarMD

• 17.5 Avg MPG

• Ruby

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Aug 2021 • 217 Fuel-ups

  Property of HomeyHD

• 13.7 Avg MPG

• My 3500

  2021 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2022 • 40 Fuel-ups

  Property of KGBoettcher

• 11.6 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Apr 2021 • 399 Fuel-ups

  Property of Fathead

• 10.6 Avg MPG

• My 3500

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 8 Speed
  Added Feb 2021 • 109 Fuel-ups

  Property of mradamja

• 11.8 Avg MPG

• Goliath

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Sep 2021 • 47 Fuel-ups

  Property of SoonerFan

• 10.9 Avg MPG

• ‘21 RAM 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2021 • 119 Fuel-ups

  Property of T-Ball

• 14.1 Avg MPG

• Silver bullet

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 287 Fuel-ups

  Property of pls313

• 15.2 Avg MPG

• My Ram 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2024 • 3 Fuel-ups

  Property of Jathroo

• 15.4 Avg MPG

• My 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2024 • 9 Fuel-ups

  Property of jrmj

• 15.9 Avg MPG

• Jarvis

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2021 • 171 Fuel-ups

  Property of jamessgibson

• 10.6 Avg MPG

• RAM 3500 Limited

  2021 Ram 3500 Limited
  Added Apr 2021 • 114 Fuel-ups

  Property of dpeters116

• 11.4 Avg MPG

• My 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 537 Fuel-ups

  Property of saulG96

• 12.3 Avg MPG

• My 3500

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 252 Fuel-ups

  Property of Brett81

• 15.3 Avg MPG

• Ram

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2022 • 42 Fuel-ups

  Property of Pkulpa

• 14.4 Avg MPG

• Ram 3500

  2021 Ram 3500 Limited
  Added Mar 2021 • 395 Fuel-ups

  Property of TRMNTR

• 11.8 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 159 Fuel-ups

  Property of lazer_beem

• 14.5 Avg MPG

• 2021 RAM 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Sep 2023 • 123 Fuel-ups

  Property of larso412

• 18.3 Avg MPG

• 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 56 Fuel-ups

  Property of got_traction

• 15.7 Avg MPG

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