Based on data from 137 vehicles, 6,331 fuel-ups and 2,067,008 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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• F-350

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed Extended Cab Pickup
  Added Sep 2020 • 10 Fuel-ups

  Property of BikerJoe

• 15.2 Avg MPG

• Kid’s F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Manual 5 Speed
  Added Jul 2022 • 9 Fuel-ups

  Property of naturalatheart

• 13.4 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Nov 2021 • 15 Fuel-ups

  Property of Bitticks

• 13.4 Avg MPG

• My F-350 Super Duty - Trips

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

  Property of pdjbrown

• 13.2 Avg MPG

• My F-350 Super Duty - Trailer

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Jun 2022 • 9 Fuel-ups

  Property of pdjbrown

• 10.3 Avg MPG

• Truck

  1999 Ford F-350 Super Duty Lariat 5.4L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 107 Fuel-ups

  Property of Bowty

• 15.2 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Mar 2022 • 5 Fuel-ups

  Property of Cummins1

• 11.6 Avg MPG

• F350

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed Crew Cab Pickup
  Added Mar 2020 • 20 Fuel-ups

  Property of daford

• 17.8 Avg MPG

• F-350 Super Duty

  1999 Ford F-350 Super Duty Lariat 7.3L V8 DIESEL Automatic 4 Speed
  Added Oct 2017 • 59 Fuel-ups

  Property of mediamonkey11

• 11.4 Avg MPG

• My F-350 Super Duty

  1999 Ford F-350 Super Duty XLT 7.3L V8 DIESEL Automatic 4 Speed
  Added Oct 2020 • 237 Fuel-ups

  Property of damianelec

• 15.3 Avg MPG

• 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

• Jimmy's uhaul

  1999 Ford F-350 Super Duty XLT 6.8L V10 GAS Automatic 4 Speed Delivery Van
  Added Mar 2020 • 109 Fuel-ups

  Property of trvln4it

• 9.1 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

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