Based on data from 85 vehicles, 5,176 fuel-ups and 1,773,592 miles of driving, the 2021 Ford F-350 Super Duty gets a combined Avg MPG of 12.27 with a 0.13 MPG margin of error.

Any Engine Type 6.2L V8 FLEX (4) 6.7L V8 DIESEL (62) 7.3L V8 GAS (18) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (2) Crew Cab Pickup (20) Cab & Chassis - Crew Cab (2) Any Submodel Limited (5) XL (5) King Ranch (9) XLT (12) Platinum (15) Lariat (38) Other (1)

Below you can see a distribution of the fuel-ups with 24 outliers (0.46%) removed.

Following shows the average MPG of each of the 85 vehicles in the system.

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• F350

  2021 Ford F-350 Super Duty XLT 6.2L V8 FLEX Automatic 10 Speed Cab & Chassis - Crew Cab
  Added May 2022 • 38 Fuel-ups

  Property of 2021F350

• 12.5 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Sep 2022 • 89 Fuel-ups

  Property of rangersea

• 15.3 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 48 Fuel-ups

  Property of sobermpg

• 17.7 Avg MPG

• Beastie

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2021 • 87 Fuel-ups

  Property of cordkrisr

• 13.4 Avg MPG

• 2022 F-350 work truck

  2021 Ford F-350 Super Duty XL 7.3L V8 GAS Automatic 10 Speed
  Added Nov 2021 • 104 Fuel-ups

  Property of phatboy5015

• 9.1 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty XLT 7.3L V8 GAS Automatic 10 Speed
  Added Jun 2023 • 25 Fuel-ups

  Property of GoldAsh

• 11.2 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty XLT 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2022 • 682 Fuel-ups

  Property of acedbs44

• 11.0 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed
  Added Jul 2021 • 178 Fuel-ups

  Property of ladenburgm

• 9.2 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Jan 2021 • 177 Fuel-ups

  Property of GSmith_34

• 19.3 Avg MPG

• New BCI CSU

  2021 Ford F-350 Super Duty XL 6.2L V8 FLEX Automatic 10 Speed
  Added Dec 2022 • 94 Fuel-ups

  Property of mathew291

• 9.2 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added May 2023 • 78 Fuel-ups

  Property of FFX5OH

• 16.5 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty XL 6.2L V8 FLEX Automatic 10 Speed
  Added Mar 2023 • 150 Fuel-ups

  Property of Rnadeau

• 10.3 Avg MPG

• F350 Calypso

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2022 • 130 Fuel-ups

  Property of ryanwood94

• 12.3 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 • 132 Fuel-ups

  Property of GG350

• 13.9 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Jul 2022 • 121 Fuel-ups

  Property of wileycrew

• 12.1 Avg MPG

• 2021 F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed
  Added May 2021 • 83 Fuel-ups

  Property of Morbert

• 11.9 Avg MPG

• 21 F-350

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 232 Fuel-ups

  Property of MudMann94

• 14.3 Avg MPG

• Tremor

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added May 2021 • 129 Fuel-ups

  Property of DrSpeed

• 13.7 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed
  Added Jan 2021 • 296 Fuel-ups

  Property of Laddy_03

• 7.6 Avg MPG

• Bruce's Truck

  2021 Ford F-350 Super Duty King Ranch 6.2L V8 FLEX Automatic 10 Speed Standard Cab Pickup
  Added Dec 2020 • 70 Fuel-ups

  Property of brucecarden

• 16.5 Avg MPG

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