Based on data from 89 vehicles, 6,698 fuel-ups and 2,320,375 miles of driving, the 2021 Ford F-350 Super Duty gets a combined Avg MPG of 12.21 with a 0.12 MPG margin of error.

Any Engine Type 6.2L V8 FLEX (6) 6.7L V8 DIESEL (64) 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 (12) Platinum (15) Lariat (41) Other (1)

Below you can see a distribution of the fuel-ups with 33 outliers (0.49%) 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 XLT 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2022 • 972 Fuel-ups

  Property of acedbs44

• 8.6 Avg MPG

• Tremor

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added May 2021 • 163 Fuel-ups

  Property of DrSpeed

• 13.6 Avg MPG

• 2022 F-350 work truck

  2021 Ford F-350 Super Duty XL 7.3L V8 GAS Automatic 10 Speed
  Added Nov 2021 • 241 Fuel-ups

  Property of phatboy5015

• 9.2 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Jul 2023 • 79 Fuel-ups

  Property of sobermpg

• 17.6 Avg MPG

• The Red Bull

  2021 Ford F-350 Super Duty XLT 7.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Jun 2021 • 86 Fuel-ups

  Property of campingalan

• 10.4 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Dec 2021 • 47 Fuel-ups

  Property of edirbcmrm

• 15.8 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty XL 6.2L V8 FLEX Automatic 10 Speed
  Added Mar 2023 • 240 Fuel-ups

  Property of Rnadeau

• 10.8 Avg MPG

• F350 Calypso

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2022 • 171 Fuel-ups

  Property of ryanwood94

• 12.6 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

• New BCI CSU

  2021 Ford F-350 Super Duty XL 6.2L V8 FLEX Automatic 10 Speed
  Added Dec 2022 • 162 Fuel-ups

  Property of mathew291

• 9.2 Avg MPG

• F350

  2021 Ford F-350 Super Duty XLT 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2023 • 79 Fuel-ups

  Property of fisenberg13

• 14.4 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Jan 2021 • 220 Fuel-ups

  Property of GSmith_34

• 19.3 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty XLT 7.3L V8 GAS Automatic 10 Speed
  Added Jun 2023 • 43 Fuel-ups

  Property of GoldAsh

• 10.9 Avg MPG

• 21 F-350

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 286 Fuel-ups

  Property of MudMann94

• 14.4 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

• F350 Tremor

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 97 Fuel-ups

  Property of S4Lee

• 11.8 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added May 2023 • 141 Fuel-ups

  Property of FFX5OH

• 16.4 Avg MPG

• Big Blue

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 135 Fuel-ups

  Property of slth69

• 16.3 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Limited 6.7L V8 DIESEL Automatic 10 Speed
  Added Aug 2024 • 25 Fuel-ups

  Property of mwattack

• 12.9 Avg MPG

• F350

  2021 Ford F-350 Super Duty XLT 6.2L V8 FLEX Automatic 10 Speed Cab & Chassis - Crew Cab
  Added May 2022 • 47 Fuel-ups

  Property of 2021F350

• 12.5 Avg MPG

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