Here's an example of an honest company with a good reputation (Red Line), that actually is honest and tells you their racing oils are not suitable for street usage:
"To reduce the chance of detonation, these race oils contain very few detergents and are not recommended for street use"
I myself prefer buying from companies like Red Line that tell the truth, not the popular hype, e.g., "Dominator?" LOL! Is their next oil going to be called "Big P*nis" racing oil?