Are you trying to enter old aCar data into Gas Cubby? If you have your aCar backup file, I can add that to your Fuelly profile, then you can sync from Fuelly to Gas Cubby. Send your backup file to
support@fuelly.com.
Finally, we have been looking at a new iOS compatible date picker with the year. We haven't found one that will work well, yet. Once synced with Fuelly, you may enter the old data into Fuelly and it will sync with Gas Cubby.