Originally Posted by swartlkk

I believe I answered the question in my first post. I know exactly what a LSD does and the various different types. The reason why you need an additive in a LSD is because of the clutches that are in about 90% of all LSD'*. The gear oil by itself allows the clutches to slip too much, thus keeping them from doing their job of close to equal power to both rear wheels. The additive is a friction modifier to allow the clutches to grab. The additive itself, though related to the ability of the rear wheels to get equal power, has nothing to do with traction.