Balance Transfer Check Is Paying Off My Auto Loan With A Credit Card Balance Transfer Check A Bad Idea? Why Or Why Not? Thanks.?

Is paying off my auto loan with a credit card balance transfer check a bad idea? Why or why not? Thanks.? - balance transfer check

Interest rates are the same. I currently use 16% of available credit on your credit card. If my credit cards to car that would be using 41% of my credit card available credit.