Based on data from 146 vehicles, 6,927 fuel-ups and 2,279,272 miles of driving, the 1999 Ford F-350 Super Duty gets a combined Avg MPG of 13.06 with a 0.08 MPG margin of error.

Any Engine Type 5.4L V8 GAS (2) 6.8L V10 GAS (10) 7.3L V8 DIESEL (109) V10 GAS (1) V8 DIESEL (23) Any Body Style Standard Cab Pickup (3) Extended Cab Pickup (10) Crew Cab Pickup (31) Delivery Van (1) Cab & Chassis - Long Conventional (1) Cab & Chassis - Extended Cab (1) Any Submodel XL (17) Lariat (36) XLT (69) Other (24)

Below you can see a distribution of the fuel-ups with 191 outliers (2.68%) removed.

Following shows the average MPG of each of the 146 vehicles in the system.

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• My F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Jan 2017 • 156 Fuel-ups

  Property of redwing98

• 12.3 Avg MPG

• Truckaroo

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL
  Added Oct 2021 • 202 Fuel-ups

  Property of Mikhailov

• 13.4 Avg MPG

• Flatbed

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added May 2022 • 85 Fuel-ups

  Property of firegoose

• 11.8 Avg MPG

• Ford F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL
  Added Jun 2019 • 26 Fuel-ups

  Property of tait4aft

• 14.1 Avg MPG

• 99 F-350 SD

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2023 • 17 Fuel-ups

  Property of 913

• 13.1 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

• 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

• 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

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added Sep 2021 • 45 Fuel-ups

  Property of smleno1mkIII

• 14.8 Avg MPG

• F-350 Super Duty XL

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 59 Fuel-ups

  Property of banest1

• 10.7 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Dec 2024 • 3 Fuel-ups

  Property of fallow-pannier

• 10.5 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

• Big Red

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

  Property of Rsmfire

• 18.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Oct 2023 • 22 Fuel-ups

  Property of Axxell

• 12.8 Avg MPG

• Great White

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Sep 2015 • 163 Fuel-ups

  Property of porkems2

• 17.3 Avg MPG

• F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Mar 2013 • 185 Fuel-ups

  Property of jjurich

• 13.1 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed
  Added Sep 2024 • 4 Fuel-ups

  Property of PooperDuty

• 13.8 Avg MPG

• Truckasaurus Verde

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Nov 2017 • 38 Fuel-ups

  Property of dmremtp

• 22.8 Avg MPG

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