Based on data from 134 vehicles, 6,206 fuel-ups and 2,027,055 miles of driving, the 1999 Ford F-350 Super Duty gets a combined Avg MPG of 12.97 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 (99) V10 GAS (1) V8 DIESEL (23) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (9) Crew Cab Pickup (31) Delivery Van (1) Cab & Chassis - Long Conventional (1) Cab & Chassis - Extended Cab (1) Any Submodel XL (13) Lariat (35) XLT (62) Other (24)

Below you can see a distribution of the fuel-ups with 177 outliers (2.77%) removed.

Following shows the average MPG of each of the 134 vehicles in the system.

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• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 83 Fuel-ups

  Property of Buhlscat

• 16.5 Avg MPG

• Southern Finishing

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Crew Cab Pickup
  Added Jun 2022 • 94 Fuel-ups

  Property of SFI504

• 14.0 Avg MPG

• Ford F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL
  Added Jun 2019 • 21 Fuel-ups

  Property of tait4aft

• 13.9 Avg MPG

• 99 F-350 SD

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2023 • 13 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 Jul 2022 • 9 Fuel-ups

  Property of markthema3

• 12.7 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2023 • 14 Fuel-ups

  Property of Brad1717

• 14.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed
  Added Jan 2023 • 29 Fuel-ups

  Property of johncomp

• 14.1 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2017 • 123 Fuel-ups

  Property of dwink

• 13.7 Avg MPG

• Truckaroo

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL
  Added Oct 2021 • 169 Fuel-ups

  Property of Mikhailov

• 13.4 Avg MPG

• Great White

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Sep 2015 • 154 Fuel-ups

  Property of porkems2

• 17.4 Avg MPG

• Powerstronk

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Jun 2022 • 29 Fuel-ups

  Property of JeepinJeff357

• 11.3 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Nov 2017 • 107 Fuel-ups

  Property of wsriehl

• 15.0 Avg MPG

• My F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2017 • 151 Fuel-ups

  Property of redwing98

• 12.4 Avg MPG

• Ford

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Apr 2018 • 73 Fuel-ups

  Property of alaskanflyboy

• 11.4 Avg MPG

• Flatbed

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added May 2022 • 65 Fuel-ups

  Property of firegoose

• 12.0 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added May 2023 • 11 Fuel-ups

  Property of Mackone

• 13.4 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added Sep 2021 • 44 Fuel-ups

  Property of smleno1mkIII

• 14.8 Avg MPG

• F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Mar 2013 • 181 Fuel-ups

  Property of jjurich

• 13.1 Avg MPG

• Vera

  1999 Ford F-350 Super Duty Lariat 7.3L DIESEL V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Jun 2015 • 148 Fuel-ups

  Property of Brokeback

• 12.6 Avg MPG

• 0 Green Truck

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Sep 2016 • 538 Fuel-ups

  Property of acornprod

• 13.3 Avg MPG

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