My client has 3 vehicles he uses exclusively as rentals through Turo.  His clients must bring the vehicles back at the same fuel level as when they took it so he rarely has any fuel expenses.  Can he still claim the standard mileage deduction?  

His Turo income is $20k.  Each of the vehicles has between 15-20k of mileage.  The standard mileage deduction is over $30k.

Doesn't seem right.