- At the bottom of the app, tap MY CAR
- Tap Add Fuel Log
- Input the details of your fuel purchase, then tap Save
Note that the Fuel Logbook found on localized GasBuddy websites is older and does not sync with the mobile version.
- Use the site menu to go to Gas Prices > Fuel Logbook.
- Once on the Fuel Logbook page, use the given links to either add a vehicle to the Logbook, or add a fuel purchase to the vehicle you have entered.
- Upon clicking Add fuel purchase, enter the required information, then click Submit Fuel Purchase.
- Note that in order for the Logbook to calculate fuel efficiency, at least 2 complete fill ups must be made in a row.