sprintman, it looks to me that Torco probably runs second behind Redline. For racing, depending on what level of racing it is, people are probably using Redline, Amsoil, Mobil 1, Schaeffer's Oil, or even oils formulated just for that event. At some Indy and Cart races I heard that they were using AGRIP (don't know if I spelled it correctly), an Italian 10W-60 synthetic racing oil. My next oil change, I am giving Schaeffer's Oil a try. I don't know if it is available to you in your country or not. The way people at this web site talk about it, I figure Schaeffer's Oil has to be good.