Have a little over a week till Mopar Nationals and I would like to change the oil in my Super Bee but I only have a little over 4 quarts of Brad Penn oil which I have been using for 3-4 years now. I probably only have about 700 miles on this oil when I changed it in June of last year. So my question is what could I use one quart of to add with the Brad Penn oil? I was thinking of something along the lines of Royal Purple break in oil. So, What would you do if you had this choice? Minus just going out and spending $40.00 - $50.00 on 5 qrts. of the same oil with zinc in it of course! Thanks, Dave!