I certainly wouldn't recommend anyone seriously rely on it..... and it IS kind of expensive, as you have to replace it every at every oil change, 3-6000 miles or so... hell it's nearly as much as another load of Vx semi-synth oil for an extra change... indeed it might be more if you have TC.
Note my 'proof of worth" tale was concerning our use of Molyslip (molybdenum sulphide? ) NOT Slick 50 , which i think i recall is an activated form of PTFE.
What's more my Bro has corrected me.... On the RS2K Pinto lump, there was more wear at the next rebuild, some increased evidence of heat in a blue tingeing of the main bearing shells, but as they were being replaced, and the crank was unaffected, it was effectively nil. basically the end result was that it saved the engine .
I can only say that my Meega has had Slick50 consistently, in every oil change and seems very smooth ....
I have not had a major oil loss to test the theory of it's protective powers, nor do i PLAN on doing so
Thinking back to the advert that prompted us to use Molyslip in the first place.... I THINK, that was the one where they filled a car with oil and the product, ran it for 50 laps , then drained it, then ran it for another 50 laps..... and then re-filled it , and there was no apparent damage... the car then went on to run for 24 hours as an endurance test just fine....
or something like that.....
Max