The 1994 Ford F150 with dual gas tanks typically features a front tank with a capacity of 16 to 19 gallons, depending on the truck's configuration, such as bed length and drivetrain. The rear tank generally holds 18 to 19 gallons.

For specific setups:

  • Short bed models: Front tank is usually 16 gallons, while the rear tank is 18 gallons.
  • Long bed models: Both tanks are often 19 gallons each.

These variations depend on factors like cab size, wheelbase, and whether the truck is 2WD or 4WD. Always verify the exact tank sizes by consulting your owner's manual or measuring during a fill-up.