This is an excellent app, and does what it says it will do. Having said that, there is still room for improvement. First the color scheme for this app is terrible and makes reading the data difficult. The author should allow the colors to be chosen by the user. Second, the decimal places can be set in settings, so I as the user should not have to enter a period when entering gal/ltrs or costs. I should be able to just enter numbers and the decimal should be entered automatically. Third, if the user does not have email set up on the device the app needs to tell the user.
For the nay sayer reviews about losing data, if you dont use iCloud or Dropbox then yes theres a chance for data loss, but emailing yourself the data weekly ensures you will have a continuing record of your data.
MichaelG7355 about RememberTheOil - Car Maintenance