It would help to know what's in the bottle. My BS detector went off when the mpg increase was mentioned.
All one has to do is look on the bottle, it says right on there, this is a zddp additive. Technically, one could consider this an oil additive that can combat new low zinc oils. However, it is very poorly done, no white paper just some total who shot john summary. And some bull jive about diamond particle, lol. In order to form a plate, you need a bonding agent. Moly uses sulfur and zinc uses phos = MoDTC and ZDDP. No bonding agent, no film. The issue we have proven with hemi tick is zinc in the form of zddp which is an aw additive is just not strong enough in the high pressure location of tick, thus we have proven moly in the form of MoDTC is the correct additive. Drop this additive and try some Lubegard Biotech. They didn't post the sds, as long as this doesnt have chlorine I'd say harmless to try on engine, well cats another issue I don't know the zddp level. lots of unknowns here.
btw, chlorine is a binding agent as well, one of the best at dealing with friction but with one downside, it can cause damage in the engine.