Based on data from 81 vehicles, 5,283 fuel-ups and 1,938,547 miles of driving, the 2021 Ram 3500 gets a combined Avg MPG of 11.99 with a 0.12 MPG margin of error.

Any Engine Type 6.4L V8 GAS (8) 6.7L L6 DIESEL (68) 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 (30)

Below you can see a distribution of the fuel-ups with 90 outliers (1.68%) removed.

Following shows the average MPG of each of the 81 vehicles in the system.

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• 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

• My 3500

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2022 • 27 Fuel-ups

  Property of rbucky2

• 13.6 Avg MPG

• '21 Ram

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jan 2021 • 56 Fuel-ups

  Property of bfs673

• 14.5 Avg MPG

• My 3500 DEF

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2021 • 4 Fuel-ups

  Property of rsabol77

• 587.2 Avg MPG

• Ram 2

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2021 • 14 Fuel-ups

  Property of andrewvanh

• 12.6 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2022 • 57 Fuel-ups

  Property of agarcia4727

• 9.1 Avg MPG

• My 3500

  2021 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 24 Fuel-ups

  Property of steveljennings

• 13.1 Avg MPG

• My 3500

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Sep 2021 • 38 Fuel-ups

  Property of UsedCrayons

• 18.4 Avg MPG

• 2021 Ram 3500

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jun 2021 • 23 Fuel-ups

  Property of Confused

• 10.7 Avg MPG

• My 3500

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed
  Added Jul 2021 • 54 Fuel-ups

  Property of 2tuff

• 15.4 Avg MPG

• My 3500 2021

  2021 Ram 3500 Laramie Longhorn 6.7L L6 DIESEL Automatic 6 Speed
  Added Aug 2021 • 150 Fuel-ups

  Property of Swag44w

• 10.4 Avg MPG

• 3500 DEF

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

  Property of 2tuff

• 733.7 Avg MPG

• My 3500 Crew Cab

  2021 Ram 3500 Tradesman 6.7L L6 DIESEL Automatic 6 Speed
  Added Nov 2021 • 10 Fuel-ups

  Property of genopoire

• 16.1 Avg MPG

• My 3500

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 6 Speed
  Added Jan 2022 • 3 Fuel-ups

  Property of donbs

• 14.9 Avg MPG

• 2021 3500

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic Crew Cab Pickup
  Added Sep 2021 • 8 Fuel-ups

  Property of chrisgsds

• 14.7 Avg MPG

• My 3500

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

  Property of kmeger

• 11.6 Avg MPG

• Goliath (31)

  2021 Ram 3500 Limited 6.7L L6 DIESEL Automatic 6 Speed Extended Crew Cab Pickup
  Added May 2021 • 11 Fuel-ups

  Property of SoonerFan

• 11.0 Avg MPG

• Ram 3500

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

  Property of Dspringall

• 12.0 Avg MPG

• 2021 Ram 3500 Laramie

  2021 Ram 3500 Laramie 6.7L L6 DIESEL Automatic 6 Speed Crew Cab Pickup
  Added Jun 2021 • 12 Fuel-ups

  Property of TheDJ817

• 12.0 Avg MPG

• Dually

  2021 Ram 3500 Big Horn 6.7L L6 DIESEL Automatic 8 Speed Crew Cab Pickup
  Added Jun 2021 • 3 Fuel-ups

  Property of Bbird205

• 10.9 Avg MPG

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