Ah, moly is actually good for LSPI prevention. The type of moly doesn't really matter. How oil affects LSPI Regarding moly types, trinuclear moly is very potent, working fairly well in smaller doses, but I now realize that it seems to be overhyped. I recently read a paper on a study with different moly types. I think the conclusion was that the dinuclear moly, which is the most common type of moly made by additive companies, is the best in reducing both friction and wear, as well as in having good synergy with ZDDP. This is probably especially so for high moly content. I can't readily find the link though. It's a long paper by Japanese researchers (who else?). Regarding timing chains, you are right that you probably want the thickest base oil (least VII content) but with high VI (such as PAO, GTL, or Group III+++). In that sense probably a synthetic 5W-20 or 5W-16 is the best. Do you think that's "thick" oil? Think again!
Originally Posted By: KCJeep
I thought I had read high doses of the older type moly were bad for LSPI? I don't remember now. I would never run the stuff but it sounds like a great oil for a little mixing or top off. I would disagree that high VI is always a good thing, actually not good for timing chains, but I do like oils loaded with goodies and this one certainly delivers.