Based on data from 89 vehicles, 6,904 fuel-ups and 2,396,337 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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• F350

  2021 Ford F-350 Super Duty XLT 6.2L V8 FLEX Automatic 10 Speed Cab & Chassis - Crew Cab
  Added May 2022 • 49 Fuel-ups

  Property of 2021F350

• 12.6 Avg MPG

• F350

  2021 Ford F-350 Super Duty XLT 6.2L V8 FLEX Automatic 10 Speed Crew Cab Pickup
  Added Feb 2025 • 5 Fuel-ups

  Property of Qwkynuf

• 13.1 Avg MPG

• Shark

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Aug 2021 • 118 Fuel-ups

  Property of ksaff

• 13.6 Avg MPG

• 2021 F-350 Super Duty

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

  Property of psdx

• 12.7 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2022 • 109 Fuel-ups

  Property of clcsmith78

• 14.2 Avg MPG

• My F-350 Super Duty

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

  Property of edirbcmrm

• 15.8 Avg MPG

• Beastie

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Mar 2021 • 113 Fuel-ups

  Property of cordkrisr

• 13.4 Avg MPG

• 2021 Ford F-350

  2021 Ford F-350 Super Duty XLT 6.7L V8 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Sep 2021 • 99 Fuel-ups

  Property of sptexas

• 12.0 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty XL 6.2L V8 FLEX Automatic 10 Speed
  Added Mar 2023 • 257 Fuel-ups

  Property of Rnadeau

• 10.8 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed
  Added Jan 2021 • 356 Fuel-ups

  Property of Laddy_03

• 7.6 Avg MPG

• F350 Tremor

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 99 Fuel-ups

  Property of S4Lee

• 11.7 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 • 94 Fuel-ups

  Property of campingalan

• 10.4 Avg MPG

• 2022 F-350 work truck

  2021 Ford F-350 Super Duty XL 7.3L V8 GAS Automatic 10 Speed
  Added Nov 2021 • 275 Fuel-ups

  Property of phatboy5015

• 9.2 Avg MPG

• 21 F-350

  2021 Ford F-350 Super Duty Platinum 6.7L V8 DIESEL Automatic 10 Speed
  Added Apr 2021 • 298 Fuel-ups

  Property of MudMann94

• 14.4 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added May 2023 • 153 Fuel-ups

  Property of FFX5OH

• 16.4 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 6.7L V8 DIESEL Automatic 10 Speed
  Added Jan 2021 • 230 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 • 45 Fuel-ups

  Property of GoldAsh

• 10.9 Avg MPG

• My F-350 Super Duty

  2021 Ford F-350 Super Duty Lariat 7.3L V8 GAS Automatic 10 Speed
  Added Jul 2021 • 224 Fuel-ups

  Property of ladenburgm

• 9.0 Avg MPG

• 2021 F-350 Super Duty

  2021 Ford F-350 Super Duty Limited 6.7L V8 DIESEL Automatic 10 Speed
  Added Jul 2021 • 131 Fuel-ups

  Property of dslbvr

• 15.2 Avg MPG

• New BCI CSU

  2021 Ford F-350 Super Duty XL 6.2L V8 FLEX Automatic 10 Speed
  Added Dec 2022 • 186 Fuel-ups

  Property of mathew291

• 9.2 Avg MPG

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