Yes, and they haven't patented the new molecule because that would put all the information out into view and start the 20 year countdown for other companies to have full use of it.
By keeping it unpatented, they are betting that other companies cannot replicate the molecule on their own -...
Sure, but if people are concerned about the lower quality base stock substitutions potentially clogging rings faster then for me the no-brainer choice is VRP - even if the base stocks get worse, whatever magic additive they came up with will still be there to clean.
Oops, guess I need to pay more attention...
Well, would anyone else be interested in doing a cut and paste if I cover shipping? WCW passed on it because the Endurance is no longer in production.