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 F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jun 2021 • 43 Fuel-ups

  Property of ztruck

• 12.3 Avg MPG

• Jeffrey Jones

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Crew Cab Pickup
  Added Jan 2020 • 188 Fuel-ups

  Property of 99f350

• 14.6 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed
  Added May 2019 • 66 Fuel-ups

  Property of roadracebc

• 11.6 Avg MPG

• Black Betty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2021 • 10 Fuel-ups

  Property of TheMalevolentMan

• 11.8 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Automatic 4 Speed
  Added Aug 2020 • 21 Fuel-ups

  Property of magnumxl4

• 13.7 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 5.4L V8 GAS Automatic 4 Speed
  Added Aug 2021 • 7 Fuel-ups

  Property of jb1rd73

• 9.8 Avg MPG

• Ferd F-Teen Thousand

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Cab & Chassis - Extended Cab
  Added May 2018 • 32 Fuel-ups

  Property of YendraBuilt

• 11.6 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Feb 2019 • 42 Fuel-ups

  Property of bshahan13

• 10.5 Avg MPG

• F350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2018 • 13 Fuel-ups

  Property of Bandeano

• 13.1 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Sep 2020 • 11 Fuel-ups

  Property of Dbranham3

• 29.9 Avg MPG

• Ford F350 Dually

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Manual 6 Speed
  Added Mar 2017 • 68 Fuel-ups

  Property of beltbuckle

• 12.4 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 6.8L V10 GAS Automatic 4 Speed
  Added Jul 2020 • 14 Fuel-ups

  Property of Mjbutah

• 10.7 Avg MPG

• Super DUTY

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Extended Cab Pickup
  Added Oct 2017 • 168 Fuel-ups

  Property of thumper81404

• 17.4 Avg MPG

• F350 2

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Feb 2020 • 5 Fuel-ups

  Property of daford

• 13.7 Avg MPG

• Fred the Ferd

  1999 Ford F-350 Super Duty XL 7.3L V8 DIESEL Manual 6 Speed Cab & Chassis - Long Conventional
  Added Jun 2019 • 5 Fuel-ups

  Property of bshaun

• 20.7 Avg MPG

• Big Stick

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Manual 6 Speed Extended Cab Pickup
  Added Jun 2019 • 4 Fuel-ups

  Property of PTOWNcommuter

• 15.0 Avg MPG

• My 99 F350 Powerstroke

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 6 Speed Standard Cab Pickup
  Added Nov 2019 • 7 Fuel-ups

  Property of Mhicks99PS

• 16.3 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2018 • 72 Fuel-ups

  Property of forddieselman

• 10.9 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Oct 2017 • 119 Fuel-ups

  Property of trekpsycho

• 11.5 Avg MPG

• 1999 F-350 Crewcab

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Jan 2019 • 22 Fuel-ups

  Property of RichyBugs

• 13.5 Avg MPG

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