Some queries
 

Can you replace the AM/PM option on the Time format (when fuel was purchased) or give option for 24hour format.

Also can an option be inserted for Octane level of fuel available in your country?

And an option to add a kml file to show an average daily trip which would indicate hills etc. This does impact on fuel consumption.

And an option to indicate if the Air Conditioner is used during the trip?

Hope I added this to the right forum.