You might want to try educating yourself before spouting off nonsense.
That's rather abrasive considering that you still have not substantiated the claims you are making or provided a shred of evidence that the counter-claims provided are indeed nonsense (although you have been asked to do this multiple times).
Years ago, Castrol was passing off hydrocracked dino oil as synthetic. Mobil sued as this fake synthetic cost less to make than real synthetic, plus didn't perform as well. The court ruled in Castrol's favor so with the you can't beat them/join them attitude, all the major "synthetics" are group III based, with maybe Mobil adding some group iv (but they won't say the amount).
Courts don't take sides (ideally), they hear the evidence and make a ruling. In this case they ruled that Castrol had succeeded in transforming regular oil into synthetic because the molecular structure and performance of the finished product was good enough to carry the label "synthetic". And your engine only cares how an oil performs, not where it came from. But, for all we know, the very good oil analysis results may very well be due to a certain percentage of group IV/V base stock. Not that it matters what the oil started as when compared to it's actual performance.
Mazda is a for profit corporation and there is no way that they will sell oil below its cost. If they wanted to something for goodwill, they'd start with replacing cracked windshields for free, not blowing out group IV/V oil for below cost!
It sounds like your argument is that it is too inexpensive to be made exclusively from group IV/V base stocks.
But you have no idea whether a portion of it is from group IV/V base stocks?
Your original argument is that Mazda oil is over-priced for what it is but you are basing that on is it's price! Nice! Personally, I don't care what base stock it originated from, I care what it's performance characteristics are.
If you want to buy a Group III oil and dream that it is the best because a non existent team of Mazda tribologists formulated it up and it has the Mazda name on it, go for it.
Never once did I say I liked it because it has the Mazda brand name. It is actually made by a very modern and technologically advanced refiner in Japan, Idemitsu, not by Mazda. Of the Japanese refiners, only Nippon has more capacity in terms of volume.
I guess I don't buy your argument that it is too inexpensive to be any good, but too expensive to be worth the money.
We like facts (which you have been lacking) and we like the fact that the oil experts rate this oil very high (especially for the price).
