[fuel gauge]

FillUp


Frequently Asked Questions (FAQ)

  1. Why isn't FillUp calculating my mileage?
  2. Why does FillUp only estimate my mileage?
  3. Why do the mileage estimates seem wrong?
  4. What if I forget to record a gas purchase?
  5. What is a CSV file and why should I care?


Why isn't FillUp calculating my mileage?

You need to fill your tank once to establish a starting point, and then continue recording all of your gasoline purchases. Each time you fill your tank after the starting point, FillUp will calculate your mileage by determining the distance driven and gasoline used since the previous full tank. All gas purchases between full tanks are included in the calculations.

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Why does FillUp only estimate my mileage?

A full tank is needed to accurately calculate how much gas was used since the previous full tank. When you get gas and the tank is not full, FillUp cannot calculate mileage exactly. Instead it will allow you to estimate mileage by asking you to approximate how much gas is left in the vehicle's tank (move the FillUp fuel gauge needle so that it matches your actual vehicle fuel gauge reading). Note that the estimates are for display only - they are not saved or shown in the Log.

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Why do the mileage estimates seem wrong?

Vehicle fuel tank size is needed to permit the most accurate estimates. The default tank size is initially set to 16 gallons (60 liters) which is the capacity for an average mid-size car. Check your vehicle owner's manual to determine the actual fuel tank size, and edit the vehicle data in the FillUp main screen to define your tank size.

[edit vehicle]

[edit vehicle]

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What if I forget to record a gas purchase?

The next time you fill your tank, the mileage calculation will be wrong (too high). You can hide this value by selecting it in the Log and clicking "Hide Calculation". This will cause FillUp to ignore it when plotting data and calculating statistics. Subsequent calculations will not be effected by the missing data as long as all future gas purchases are accurately recorded.

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What is a CSV file and why should I care?

A comma separated values (CSV) file is a plain text file where each line represents a data record and the record field values are separated by commas. FillUp can save (Export) Log data to a CSV file, and restore (Import) it from a CSV file. This feature can be useful for backing up your data or transferring it from one phone to another.

To save Log data:
  1. While viewing a vehicle Log, select Export from the options menu.
  2. Follow the directions on screen.
  3. A CSV file will be created in the Downloads folder of your device's sdcard. The file name will be the name of the vehicle with ".csv" appended.
To restore Log data:
  1. While viewing a vehicle Log, select Import from the options menu.
  2. Select a CSV file to import from the displayed list.
  3. FillUp will read data from the CSV file into the Log.
NOTE: Import will fail if the CSV file contains any data that is already in the Log (i.e. same odometer values). For this reason it is best to Import data into an empty Log. Either delete all existing data from the Log (delete and re-create the vehicle) or create a new vehicle with a different name and Import into the Log for that vehicle.

CSV files can also be used with most spreadsheet programs. In this case, each spreadsheet row represents a line from the FillUp Log.  The spreadsheet table columns are defined as:

date/time
odometer
quantity
fulltank
hidden
cost
notes
calculation
when the gas was purchased the vehicle odometer at the time of  gas purchase the amount of gas purchased (gallons or liters) true if tank was filled, false otherwise true if the calculation is hidden in the log, false otherwise the total cost of the gas purchased.
the text entered in the Notes field when the gas was purchased (80 characters maximum)
the calculated mileage (MPG, KM/L, or L/100KM)


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