Based on data from 137 vehicles, 6,333 fuel-ups and 2,067,455 miles of driving, the 1999 Ford F-350 Super Duty gets a combined Avg MPG of 12.98 with a 0.09 MPG margin of error.

Any Engine Type 5.4L V8 GAS (2) 6.8L V10 GAS (8) 7.3L V8 DIESEL (102) V10 GAS (1) V8 DIESEL (23) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (10) Crew Cab Pickup (30) Delivery Van (1) Cab & Chassis - Long Conventional (1) Cab & Chassis - Extended Cab (1) Any Submodel XL (14) Lariat (35) XLT (64) Other (24)

Below you can see a distribution of the fuel-ups with 181 outliers (2.78%) removed.

Following shows the average MPG of each of the 137 vehicles in the system.

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• The Beast

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2024 • 37 Fuel-ups

  Property of skrodlada21

• 10.0 Avg MPG

• Truckaroo

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL
  Added Oct 2021 • 170 Fuel-ups

  Property of Mikhailov

• 13.4 Avg MPG

• F-350

  1999 Ford F-350 Super Duty DIESEL V8
  Added Jan 2013 • 29 Fuel-ups

  Property of aneaville

• 16.3 Avg MPG

• Southern Finishing

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Crew Cab Pickup
  Added Jun 2022 • 128 Fuel-ups

  Property of SFI504

• 14.0 Avg MPG

• Big Red

  1999 Ford F-350 Super Duty XLT
  Added Oct 2017 • 54 Fuel-ups

  Property of Rsmfire

• 19.1 Avg MPG

• Flatbed

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added May 2022 • 74 Fuel-ups

  Property of firegoose

• 12.1 Avg MPG

• Vera

  1999 Ford F-350 Super Duty Lariat 7.3L DIESEL V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Jun 2015 • 154 Fuel-ups

  Property of Brokeback

• 12.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Jun 2016 • 32 Fuel-ups

  Property of ripper2670

• 13.0 Avg MPG

• F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2020 • 49 Fuel-ups

  Property of jrlacyjr

• 16.0 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 90 Fuel-ups

  Property of Buhlscat

• 16.7 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added Jul 2022 • 12 Fuel-ups

  Property of markthema3

• 12.6 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed
  Added Jan 2023 • 46 Fuel-ups

  Property of johncomp

• 14.0 Avg MPG

• Dually

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Nov 2012 • 246 Fuel-ups

  Property of Project7Studios

• 13.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Nov 2017 • 112 Fuel-ups

  Property of wsriehl

• 15.0 Avg MPG

• F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Jan 2018 • 119 Fuel-ups

  Property of wkoehler7987

• 15.4 Avg MPG

• My F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2017 • 154 Fuel-ups

  Property of redwing98

• 12.3 Avg MPG

• Powerstroke

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2017 • 210 Fuel-ups

  Property of mothman350

• 14.4 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Oct 2023 • 10 Fuel-ups

  Property of Axxell

• 12.6 Avg MPG

• 99 F-350 SD

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2023 • 15 Fuel-ups

  Property of 913

• 12.7 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added May 2023 • 13 Fuel-ups

  Property of Mackone

• 14.4 Avg MPG

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