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What`s the Holy Grail of additives?
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What`s the end all-be all *best* anti wear additive in motor oil?
You asked two different questions. I was responding to the latest additive category in fully formulated oils such as GF-5, and not Third-Party additives purchased OTC.
IMHO, the best all-around anti-wear additive and anti-oxidant is still ZDDP, with Boron esters coming in second, which is why you see ZDDP being reduced and Boron increasing.