Who can do what on a shared car?

Open Mileage, tap the settings gear (Mileage Settings), and tap the car. People lists everyone on the car and its open invitations. A car holds up to 10 people, counting open invitations.

Everyone on the car can:

• add, edit, and delete the car's trips, fuel setups, fuels, and prices;

• rename the car, or Archive… it, which hides it from new trips for everyone and keeps its trips in reports;

• invite their own buddies with Invite Buddy…, so the people on a car don't all need to be each other's buddies (someone who isn't your buddy shows by the name and photo they share);

• cancel an invitation they sent with Cancel Invitation;

• leave with Leave Car….

The owner is the person who shared the car. Only the owner can take someone off the car with Remove from Car…, or end sharing for everyone with Stop Sharing…. The owner can also cancel anyone's invitation. When the owner leaves, the person who joined first becomes the owner.

A shared car can't be deleted. To stop using it, archive it for everyone, or leave it yourself (see “What happens when I leave a shared car, I'm removed, or sharing stops?”).

Fuels: a shared car has its own fuels, copied from the owner's when the car was shared. They show with the car's name, like “Gasoline · Family Minivan,” and the fuel form says that changes apply to everyone on the car. Changing the price of one of your own fuels doesn't change the shared car's fuel, so update both if you use both.