I have received the restore sample and immediately put it on the timken machine. The first thing I noticed looking at how this was reacting to the bearing was it was clinging extremely well to the bearing. Good if you want a solid strong coating, bad as it can reduce oil flow actually touching the metal surface. Now that isn't the main reason for doing the timken on this, so once I spun it up, and applied the pressure, it had excellent results as for a barrier additive. It appeared to withstand all I could put on it. On clean up, it was seem to stick to the parts more than any of the others I have seen. This test was done without putting any other oils in with this sample.
I know a lot of people think that these additives should be tested on this with a carrier oil as if it was to be in the engine. I don't agree. This test is designed to test for the last line of defense which is a barrier additive. Barrier additives normally are already in some sort of carrier motor oil so addition to this will not help. Also, Heat is one of the primary things that "activate" barrier additives. This is true with the zddp and moly. In the case of moly, the hotter it gets, the faster it plates up.
So testing an additive in its raw form should demonstrate it's ability to lay a barrier additive down on the surface. One last point on this is that if you are to put an additive in an oil and test it, how would you know what is laying down the barrier, the motor oils additive package or the additive you applied? All good oils will resist shearing with the use of barrier additives so to truly test just the item on this machine you want to verify, it must be done by itself.
