Believe it or not, the AUDI GODS reccomend oil changes at 7500 miles. I think this is for us non racing folk. So changing the filter only at 3000 miles sounds good to me. I think 10,000 is a little too long. But than again whoose listening to me anyway. BOB RUSSELL 89 200TQ ( with a charlie smith spring) 86 4KCS 84 5KS GONE BUT NOT FORGOTTEN