Friction for the plates In my opinion for the 6 bucks it costs it is well worth it, I can always tell when I am in a truck with a limited slip whether it has been used or not. Some synthetic gear lubes are formulated with the additive also.

 

Trip went fine actually....except in Atlanta it started to get a little warmer then i would have liked it....but got threw without a problem.....did you guys know that no matter what time of the day or night you drive threw Atlanta the traffic is NUTS!!!

I didn't get to change that before i left but its defiantly on my to do list...right after my starting issue is resolved