I have always used Brad Penn oil in my 512 since it was built. The car hasn't been driven down the track for a few years but I always change the oil and filter every year as I like to fire it up once in a while. I even keep the belts up to date in the hope that the Dr.s will let me drive it some day. As you can imagine,an oil change is pretty expensive. I did buy some Rotella 15-40 that I could change it with. Should I change the oil or what...Thanks guys! Ted