You can add new mileage or edit an existing mileage on the Earnings page.
Here are the instructions:
Tap on Earnings page at the bottom right button on the lower menu.
Tap on the black colored 'plus' (+) button located on the top right menu
Select Add mileage
Select a start date
- Select an end date
Enter your mileage
Tap on Save located in the top right menu
An alert will drop down from the top menu to let you know that your manual earnings entry was saved.
Note: Mileage is tracked as total mileage regardless of which gig app you drive for.