Based on data from 145 vehicles, 6,659 fuel-ups and 2,162,046 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 (108) 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 (17) Lariat (35) XLT (69) Other (24)

Below you can see a distribution of the fuel-ups with 184 outliers (2.69%) removed.

Following shows the average MPG of each of the 145 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 • 89 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 Nov 2019 • 108 Fuel-ups

  Property of Buhlscat

• 16.7 Avg MPG

• The Beast

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2024 • 62 Fuel-ups

  Property of skrodlada21

• 10.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added Jul 2022 • 18 Fuel-ups

  Property of markthema3

• 12.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Nov 2017 • 126 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 • 12 Fuel-ups

  Property of jessykatie

• 15.2 Avg MPG

• My F-350 Super Duty

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

  Property of Brad1717

• 14.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2025 • 4 Fuel-ups

  Property of johnbittick

• 12.9 Avg MPG

• Flatbed

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added May 2022 • 83 Fuel-ups

  Property of firegoose

• 11.8 Avg MPG

• Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Apr 2024 • 22 Fuel-ups

  Property of dftuttle16

• 14.6 Avg MPG

• F350

  1999 Ford F-350 Super Duty XL 6.8L V10 GAS Automatic 4 Speed Crew Cab Pickup
  Added Jun 2023 • 8 Fuel-ups

  Property of kapoor

• 7.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2024 • 9 Fuel-ups

  Property of maltzy

• 14.1 Avg MPG

• F-350 Dually Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added May 2023 • 18 Fuel-ups

  Property of Mackone

• 15.5 Avg MPG

• Ford

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Apr 2018 • 86 Fuel-ups

  Property of alaskanflyboy

• 11.5 Avg MPG

• Powerstroke

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2017 • 222 Fuel-ups

  Property of mothman350

• 14.4 Avg MPG

• Southern Finishing

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Crew Cab Pickup
  Added Jun 2022 • 183 Fuel-ups

  Property of SFI504

• 14.0 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Jun 2016 • 36 Fuel-ups

  Property of ripper2670

• 13.0 Avg MPG

• F-350

  1999 Ford F-350 Super Duty DIESEL V8
  Added Jan 2013 • 32 Fuel-ups

  Property of aneaville

• 15.8 Avg MPG

• 99 F-350 SD

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2023 • 16 Fuel-ups

  Property of 913

• 12.7 Avg MPG

• F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed
  Added Dec 2024 • 3 Fuel-ups

  Property of kielbasa

• 15.0 Avg MPG

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