What vivaukraine said wasn't nice because it was all offensive but what I think he meant to say was that if 100% PAO based oils were offered in the United States, it would be a niche market limited mostly to BITOGers.
As far as I'm aware, none of the manufactures in the United States produce any engine oils advertised as 100% PAO. Ravenol is the only option.
If we visit Liqui Moly's German website, there's an option to filter by type of oil and if we select vollsynthetisch, we see 18 different offerings.
So in Europe, Liqui Moly thinks there's an interest for 100% PAO based oils but not in North America.
So why do none of the manufacturers bother with 100% PAO?
Liqui moly's German blog gives some answers (translated):
Should I take a PAO oil or an HC oil?
Oliver Kuhn: Often there is no such choice. Almost all oil development nowadays takes place on the basis of HC oils. Many oil specifications can only be met with HC oils.
If the specification is correct, does it not matter whether it is a PAO oil or an HC oil?
Oliver Kuhn: Right. In any case, the additive packages are becoming increasingly important. Today they are the most important component of an engine oil alongside the oil itself. It is they who provide a large part of the engine oil's performance. With some very modern engine oils, the actual oil is little more than just the carrier fluid for the additive packages.
Then why are there always discussions about which synthetic oil is better?
Oliver Kuhn: That is an echo from the past.
When the first HC oils appeared 30 years ago, the quality difference to PAO oils was even greater. But that was a long time ago. No expert would have such a discussion these days.
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So what do we have here in North America? Mobil 1 may have some PAO in some formulas, Pennzoil which uses GTL... etc
We see from the wear numbers in our UOA's that these oils are all great but lately, we also see things like fuel dilution which would stop us from taking advantage of some of the benefits of 100% PAO.
In my opinion, yes 100% PAO oils have clear benefits but most North Americans would not be willing to pay a high premium for these benefits when HC oils meet the specifications. Manufactures seem to agree based on the products offered.
One of the arguments I read is that the price difference wouldn't be much if PAO was sold in bulk.
Here's a post from a former Pennzoil insider discussing why it's tough to upsell PUP versus PP, even though the wholesale price difference is minimal.
I think 100% PAO oils would present the same problem.