"you cant go wrong with mobil 1 0w50" i agree
I'm a fan of Mobil 1 in the right grade, it has never ever failed me. With that being said, I'm not a expert engine builder, or driver but I try. I have a 97 Camaro LT1 full roller motor that I autocross and do open track days with, I show it no mercy. I don't turn the rpm's that you will, don't have a dry sump, nor do run as long, 20 min max. on big track. I use Mobil 1 5w40 TDT. With that being said, I wouldn't use anything from Lucas Oil or Royal Purple. I just don't see/talk to people who run the [censored] out of there cars use it. I don't see top level NASCAR teams, endurance racing teams anyone that is at a very high level use either one of these. I see people use Mobil 1 products, 0w40 5w40 15w50 0w50, and I see people use Shell Rotella 5w40 and Redline racing oils Amsoil, Castrol, Valvoline. In my opinion, it's going to be more about what you can get easily. You don't need a real high zddp oil, or have to worry about wiping a cam or anything. Heat and shear are what I would worry about. Sustained high rpm's generate heat in the oil, and managing that heat is a factor in choice as well. Is the car ready to run yet, I would be so excited I couldn't sleep if I was building something like that. I want a real race car so bad.