When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I think Royal purple also has a LSD additive that you can get to add with the Gear oil..real small bottle of the stuff.
I'm not aware of any Royal Purple LSD friction modifier other than what they pre-add to their gear oil, but you never know what they may sell in various markets.
Originally Posted by misterstyx69
If you add it to your Diff it helps a lot.
Just for clarification, the friction modifier increases slip and reduces lock.