Based on data from 89 vehicles, 6,927 fuel-ups and 2,403,678 miles of driving, the 2021 Ford F-350 Super Duty gets a combined Avg MPG of 12.18 with a 0.12 MPG margin of error.

Any Engine Type 6.2L V8 FLEX (7) 6.7L V8 DIESEL (63) 7.3L V8 GAS (18) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (2) Crew Cab Pickup (21) Cab & Chassis - Crew Cab (2) Any Submodel XL (5) Limited (6) King Ranch (9) XLT (13) Platinum (15) Lariat (40) Other (1)

Below you can see a distribution of the fuel-ups with 35 outliers (0.50%) removed.

Following shows the average MPG of each of the 89 vehicles in the system.

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• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Nov 2024 • 17 Fuel-ups

  Property of mdun25

• 14.0 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty King Ranch 6.7L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 181 Fuel-ups

  Property of GG350

• 13.5 Avg MPG

• 2021 F-350 Tremor

  2021 Ford F-350 Super Duty King Ranch 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2021 • 157 Fuel-ups

  Property of Miket54

• 15.5 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Sep 2021 • 83 Fuel-ups

  Property of MontanaRusd

• 14.2 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty King Ranch 6.7L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 107 Fuel-ups

  Property of PGEduardo

• 13.7 Avg MPG

• Black Beauty

  2021 Ford F-350 Super Duty Limited 6.7L V8 DIESEL Automatic 10 Speed
  Added Feb 2023 • 24 Fuel-ups

  Property of cramil

• 14.3 Avg MPG

• Blue Streak

  2021 Ford F-350 Super Duty XLT 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 35 Fuel-ups

  Property of jdaniels0357

• 14.7 Avg MPG

• 2021 F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Feb 2021 • 182 Fuel-ups

  Property of ScrewStang

• 16.6 Avg MPG

• 2021 F-350 Super Duty

  2021 Ford F-350 Super Duty King Ranch 6.7L V8 DIESEL Automatic 10 Speed
  Added Sep 2021 • 36 Fuel-ups

  Property of btdouthit

• 11.9 Avg MPG

• F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2021 • 30 Fuel-ups

  Property of speezer

• 11.6 Avg MPG

• Ford F-350 SD DRW

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2025 • 28 Fuel-ups

  Property of aviator465

• 14.7 Avg MPG

• 2021 F350

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Aug 2022 • 75 Fuel-ups

  Property of cjhofer

• 13.4 Avg MPG

• 91622068

  2021 Ford F-350 Super Duty
  Added Mar 2024 • 35 Fuel-ups

  Property of tireoutlet

• 13.1 Avg MPG

• Grey Goose

  2021 Ford F-350 Super Duty XL 7.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Jun 2021 • 15 Fuel-ups

  Property of Marcm157

• 10.9 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Feb 2024 • 4 Fuel-ups

  Property of copperglobe

• 16.1 Avg MPG

• Ford 350

  2021 Ford F-350 Super Duty Lariat 6.2L V8 FLEX Automatic 10 Speed
  Added May 2024 • 15 Fuel-ups

  Property of bubbabenson

• 15.6 Avg MPG

• F - 350

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2021 • 141 Fuel-ups

  Property of Hunter2142

• 15.0 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2023 • 9 Fuel-ups

  Property of chrisromano1993

• 16.7 Avg MPG

• HenryII

  2021 Ford F-350 Super Duty XLT 6.7L V8 DIESEL Automatic Cab & Chassis - Crew Cab
  Added Oct 2023 • 3 Fuel-ups

  Property of PatterK64

• 10.7 Avg MPG

• 350 Superduty SRW

  2021 Ford F-350 Super Duty Limited 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jun 2023 • 9 Fuel-ups

  Property of Wldrup

• 11.9 Avg MPG

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