Based on data from 142 vehicles, 6,619 fuel-ups and 2,150,403 miles of driving, the 1999 Ford F-350 Super Duty gets a combined Avg MPG of 12.99 with a 0.09 MPG margin of error.

Any Engine Type 5.4L V8 GAS (2) 6.8L V10 GAS (10) 7.3L V8 DIESEL (105) 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 (16) Lariat (35) XLT (67) Other (24)

Below you can see a distribution of the fuel-ups with 184 outliers (2.70%) removed.

Following shows the average MPG of each of the 142 vehicles in the system.

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• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed
  Added Jan 2023 • 84 Fuel-ups

  Property of johncomp

• 14.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2024 • 8 Fuel-ups

  Property of maltzy

• 14.4 Avg MPG

• Ford

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Apr 2018 • 85 Fuel-ups

  Property of alaskanflyboy

• 11.5 Avg MPG

• Southern Finishing

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Crew Cab Pickup
  Added Jun 2022 • 178 Fuel-ups

  Property of SFI504

• 14.0 Avg MPG

• Powerstroke

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2017 • 221 Fuel-ups

  Property of mothman350

• 14.4 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Jun 2016 • 35 Fuel-ups

  Property of ripper2670

• 13.0 Avg MPG

• Ford F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL
  Added Jun 2019 • 25 Fuel-ups

  Property of tait4aft

• 14.3 Avg MPG

• F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2020 • 53 Fuel-ups

  Property of jrlacyjr

• 15.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 104 Fuel-ups

  Property of Buhlscat

• 16.8 Avg MPG

• Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Apr 2024 • 20 Fuel-ups

  Property of dftuttle16

• 14.7 Avg MPG

• The Beast

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2024 • 57 Fuel-ups

  Property of skrodlada21

• 10.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Nov 2017 • 122 Fuel-ups

  Property of wsriehl

• 14.9 Avg MPG

• Woodys 7.3

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Extended Cab Pickup
  Added Dec 2023 • 10 Fuel-ups

  Property of jessykatie

• 15.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 6.8L V10 GAS Automatic 4 Speed
  Added May 2024 • 5 Fuel-ups

  Property of gdorris

• 9.4 Avg MPG

• Road Tractor

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Standard Cab Pickup
  Added Jun 2021 • 12 Fuel-ups

  Property of cupcakefury

• 15.4 Avg MPG

• Sherman

  1999 Ford F-350 Super Duty XL 6.8L V10 GAS Automatic 4 Speed
  Added Oct 2024 • 3 Fuel-ups

  Property of kyleswenson

• 7.8 Avg MPG

• Truckaroo

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL
  Added Oct 2021 • 201 Fuel-ups

  Property of Mikhailov

• 13.4 Avg MPG

• F350

  1999 Ford F-350 Super Duty XL 6.8L V10 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jun 2023 • 7 Fuel-ups

  Property of kapoor

• 7.9 Avg MPG

• Vera

  1999 Ford F-350 Super Duty Lariat 7.3L DIESEL V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Jun 2015 • 167 Fuel-ups

  Property of Brokeback

• 12.5 Avg MPG

• Big Red

  1999 Ford F-350 Super Duty XLT
  Added Oct 2017 • 56 Fuel-ups

  Property of Rsmfire

• 18.9 Avg MPG

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