Based on data from 84 vehicles, 6,119 fuel-ups and 2,261,413 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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• Ram 3500

  2021 Ram 3500 Limited
  Added Mar 2021 • 390 Fuel-ups

  Property of TRMNTR

• 11.8 Avg MPG

• ‘21 RAM 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2021 • 116 Fuel-ups

  Property of T-Ball

• 14.1 Avg MPG

• Goliath

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Sep 2021 • 44 Fuel-ups

  Property of SoonerFan

• 11.1 Avg MPG

• Ruby

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Aug 2021 • 209 Fuel-ups

  Property of HomeyHD

• 13.6 Avg MPG

• My 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 524 Fuel-ups

  Property of saulG96

• 12.3 Avg MPG

• Ram 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2021 • 117 Fuel-ups

  Property of hbwatson

• 9.5 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2024 • 16 Fuel-ups

  Property of BarMD

• 17.8 Avg MPG

• My 3500

  2021 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2022 • 39 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 • 390 Fuel-ups

  Property of Fathead

• 10.5 Avg MPG

• Silver bullet

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 280 Fuel-ups

  Property of pls313

• 15.2 Avg MPG

• Ram

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Aug 2022 • 41 Fuel-ups

  Property of Pkulpa

• 14.4 Avg MPG

• 2021 3500

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2021 • 61 Fuel-ups

  Property of MR4WLR

• 13.0 Avg MPG

• My 3500

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 8 Speed
  Added Feb 2021 • 107 Fuel-ups

  Property of mradamja

• 11.9 Avg MPG

• My 3500

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 248 Fuel-ups

  Property of Brett81

• 15.3 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 364 Fuel-ups

  Property of taterdude

• 11.7 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2023 • 53 Fuel-ups

  Property of trevortoy

• 11.9 Avg MPG

• 2021 RAM 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added Sep 2023 • 120 Fuel-ups

  Property of larso412

• 18.3 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 8 Speed
  Added Oct 2024 • 126 Fuel-ups

  Property of errosfitz

• 10.0 Avg MPG

• 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added May 2021 • 55 Fuel-ups

  Property of got_traction

• 15.7 Avg MPG

• Jarvis

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Mar 2021 • 156 Fuel-ups

  Property of jamessgibson

• 10.7 Avg MPG

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