Would be very curious on the uoa of Motul. If I remember I'll get one for my royal purple.
Red line was a favorite in the Audi community. But it seems the few tests I've seen it in. It wasn't really worth it. I'm torn between German Castrol, Amsoil, pens ultra, and some version of liquimoli. LM has a product specifically for Ford motors and then other blends based on want and needs such as thermal,flow and other data points