I remember reading on JG motor
oil. Its great for classic cars with flat tappet lifters who don't have cats in the exhaust, as it can have
zinc which is great lubricant but hell on cats. And lots of other goodies. They have a couple versions I recall one for classic street cars and then racing
oil. I think he is getting his money's worth out of the chemical engineers he's hired by keeping them busy. I have zero experience or info, but going on his reputation and knowing its a "ground up" effort with his own guys I would imagine that this is a great product. Necessary? Usually not but if you race a lot the best lube you can get is advised.