Big Jim, I was just curious why you felt the need to use the 3k change interval? Reading all these posts, it is clear that everyone holds near and dear their own beliefs regarding oil, as I do also. Mine is over 30 years years worth of driving as well as racing (SCCA Showroom Stock Sedan). I have had my oil analysized for the past 30 years as well. Just using the facts as they are presented to me. Bill
