Well it was payday last Friday. I finally got the totals of how much they put on principal vs. interest.

I put 232.97 on principal for the car.
I put 192.37 on principal for student loan.

The car amount was more then the minimum this time. But, I had money left over from our gas budget last time. And since I figured that out AFTER I made a payment to the student loan I would have to wait till today to make the payment. So I took it over to the bank instead...