Based on data from 142 vehicles, 6,597 fuel-ups and 2,143,679 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 (2.71%) removed.

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

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• 1999 7.3 Diesel F350

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Apr 2016 • 66 Fuel-ups

  Property of DrivingFords

• 11.4 Avg MPG

• Bessie

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Apr 2016 • 12 Fuel-ups

  Property of bonjoey

• 11.1 Avg MPG

• Truck

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Standard Cab Pickup
  Added Sep 2014 • 30 Fuel-ups

  Property of Pikachu_Too

• 15.1 Avg MPG

• White whale

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jul 2016 • 3 Fuel-ups

  Property of Roel

• 10.2 Avg MPG

• Dually

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Extended Cab Pickup
  Added Oct 2015 • 16 Fuel-ups

  Property of Harvey5143

• 12.3 Avg MPG

• Truck

  1999 Ford F-350 Super Duty DIESEL V8
  Added Mar 2014 • 19 Fuel-ups

  Property of eensign2

• 15.0 Avg MPG

• Beast

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Mar 2015 • 8 Fuel-ups

  Property of mikeyboyaz

• 13.6 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2015 • 14 Fuel-ups

  Property of xDoctorDieselx

• 13.0 Avg MPG

• work truck

  1999 Ford F-350 Super Duty DIESEL V8
  Added Apr 2009 • 262 Fuel-ups

  Property of troyhonda

• 10.9 Avg MPG

• 1999.5 Supercab Powerstroke 7.3

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Extended Cab Pickup
  Added Nov 2013 • 45 Fuel-ups

  Property of ColoradoELKhunter

• 11.6 Avg MPG

• Mr. Diesel

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Standard 5 Speed Crew Cab Pickup
  Added Jun 2018 • 13 Fuel-ups

  Property of markmiller2000

• 15.0 Avg MPG

• Scratch-n-Dent

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Aug 2012 • 41 Fuel-ups

  Property of ARohde

• 16.5 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 6.8L GAS V10 Automatic 4 Cab & Chassis (4 Door)
  Added Jul 2014 • 7 Fuel-ups

  Property of karlwarfel

• 14.2 Avg MPG

• Dually

  1999 Ford F-350 Super Duty DIESEL V8
  Added Apr 2010 • 17 Fuel-ups

  Property of dannanw

• 11.4 Avg MPG

• Big Blue

  1999 Ford F-350 Super Duty XLT 7.3L DIESEL V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Feb 2015 • 6 Fuel-ups

  Property of cspence

• 14.2 Avg MPG

• Sherman

  1999 Ford F-350 Super Duty DIESEL V8
  Added May 2014 • 32 Fuel-ups

  Property of mcompton1973

• 16.8 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L DIESEL V8 Standard 6 Cab & Chassis (4 Door)
  Added Oct 2014 • 5 Fuel-ups

  Property of RockCrawlinJeep

• 14.3 Avg MPG

• Truck

  1999 Ford F-350 Super Duty DIESEL V8
  Added Nov 2011 • 63 Fuel-ups

  Property of mk4dubbin

• 13.1 Avg MPG

• Dually

  1999 Ford F-350 Super Duty XLT 7.3L DIESEL V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Mar 2015 • 83 Fuel-ups

  Property of Bionic40

• 15.0 Avg MPG

• timmys trk

  1999 Ford F-350 Super Duty Lariat 7.3L DIESEL V8 Automatic 4 Crew Cab Pickup (4 Door)
  Added Oct 2014 • 4 Fuel-ups

  Property of ingram44

• 14.0 Avg MPG

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