What???  One post you just said it is used 95% for the rentals, and a minute later you said it was used 95% for the business.  You need to get things straight.

At any rate, the deduction goes with the activity and on the Schedule that the vehicle was used for, and that could even be both.  If it was used for Schedule E rentals, those miles go on Schedule E.  If it was used for the Schedule C business, those miles go on Schedule C.

If 2019 was wrong, that should be amended.