Based on data from 137 vehicles, 6,340 fuel-ups and 2,069,933 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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• 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

• F350

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

  Property of kapoor

• 8.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2017 • 124 Fuel-ups

  Property of dwink

• 13.7 Avg MPG

• 0 Green Truck

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Sep 2016 • 539 Fuel-ups

  Property of acornprod

• 13.3 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 • 5 Fuel-ups

  Property of jessykatie

• 15.3 Avg MPG

• 1999 Ford Truck

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Oct 2017 • 153 Fuel-ups

  Property of WY7EM

• 17.7 Avg MPG

• F-350 Super Duty XL

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 54 Fuel-ups

  Property of banest1

• 10.7 Avg MPG

• Ford F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL
  Added Jun 2019 • 23 Fuel-ups

  Property of tait4aft

• 14.4 Avg MPG

• Truckasaurus Verde

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Nov 2017 • 34 Fuel-ups

  Property of dmremtp

• 21.6 Avg MPG

• Ford

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Apr 2018 • 74 Fuel-ups

  Property of alaskanflyboy

• 11.3 Avg MPG

• Road Tractor

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Standard Cab Pickup
  Added Jun 2021 • 9 Fuel-ups

  Property of cupcakefury

• 15.3 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed
  Added Jul 2023 • 5 Fuel-ups

  Property of USMC2002

• 10.5 Avg MPG

• Great White

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Sep 2015 • 155 Fuel-ups

  Property of porkems2

• 17.3 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

• 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 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

• F350

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Aug 2019 • 85 Fuel-ups

  Property of Tooger

• 11.5 Avg MPG

• My F-350 Super Duty - Day

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jun 2022 • 15 Fuel-ups

  Property of pdjbrown

• 12.5 Avg MPG

• F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Aug 2022 • 11 Fuel-ups

  Property of Mayesk159

• 12.9 Avg MPG

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