Based on data from 128 vehicles, 5,781 fuel-ups and 1,888,341 miles of driving, the 1999 Ford F-350 Super Duty gets a combined Avg MPG of 12.95 with a 0.09 MPG margin of error.

Any Engine Type 5.4L V8 GAS (2) 6.8L V10 GAS (7) 7.3L V8 DIESEL (94) 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 (11) Lariat (34) XLT (59) Other (24)

Below you can see a distribution of the fuel-ups with 170 outliers (2.86%) removed.

Following shows the average MPG of each of the 128 vehicles in the system.

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• F-350 Super Duty XL

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 43 Fuel-ups

  Property of banest1

• 10.9 Avg MPG

• 1999 F350

  1999 Ford F-350 Super Duty XLT 6.8L V10 GAS Automatic 4 Speed Crew Cab Pickup
  Added Nov 2017 • 45 Fuel-ups

  Property of ntschultz15

• 11.8 Avg MPG

• Ford F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL
  Added Jun 2019 • 18 Fuel-ups

  Property of tait4aft

• 13.5 Avg MPG

• Flatbed

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added May 2022 • 16 Fuel-ups

  Property of firegoose

• 12.1 Avg MPG

• Southern Finishing

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Crew Cab Pickup
  Added Jun 2022 • 30 Fuel-ups

  Property of SFI504

• 14.0 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 • 3 Fuel-ups

  Property of pdjbrown

• 12.1 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Nov 2017 • 93 Fuel-ups

  Property of wsriehl

• 14.9 Avg MPG

• Truckaroo

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL
  Added Oct 2021 • 128 Fuel-ups

  Property of Mikhailov

• 13.2 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 6 Speed
  Added Jun 2016 • 27 Fuel-ups

  Property of ripper2670

• 13.0 Avg MPG

• Truckasaurus Verde

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Nov 2017 • 30 Fuel-ups

  Property of dmremtp

• 22.6 Avg MPG

• Dually

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Nov 2012 • 228 Fuel-ups

  Property of Project7Studios

• 13.7 Avg MPG

• 0 Green Truck

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Sep 2016 • 514 Fuel-ups

  Property of acornprod

• 13.3 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added Sep 2021 • 29 Fuel-ups

  Property of smleno1mkIII

• 15.1 Avg MPG

• Powerstroke

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2017 • 192 Fuel-ups

  Property of mothman350

• 14.3 Avg MPG

• Ford

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Apr 2018 • 68 Fuel-ups

  Property of alaskanflyboy

• 11.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2019 • 52 Fuel-ups

  Property of Buhlscat

• 16.0 Avg MPG

• F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2020 • 36 Fuel-ups

  Property of jrlacyjr

• 16.0 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2017 • 115 Fuel-ups

  Property of dwink

• 13.8 Avg MPG

• Powerstronk

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Jun 2022 • 3 Fuel-ups

  Property of JeepinJeff357

• 10.2 Avg MPG

• F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Mar 2013 • 178 Fuel-ups

  Property of jjurich

• 13.1 Avg MPG

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