Originally Posted By: CATERHAM
Originally Posted By: dailydriver
Originally Posted By: A_Harman
He thinks that even the top shelf, high grade, premium VIIs will still shear down badly in hard use.
Now, of course everyone on here will BLAST him for the inevitable lower VIs, but they should still be decent with the 85%+ ester base stocks.
That sounds a lot like marketing hype to me.
A couple of years ago Terry Dyson strongly criticized the ultra high VI Toyota and Honda 0W-20s when they first came known, saying they would shear all to h*ll. Well he has had to recant that prediction. The truth is, the latest crop of low molecular weight polymer thickeners are very shear stable.
I have nothing against VII free oils. The FUCHS Titan GT-1 XTL 0W-20 I'm using in my track car is 100% ester based, contains no VIIs (and no ZDDP either) but still manages a 172 VI.
The thing is, high VI base oils are prohibitively expensive for most formulators and unless you are a major formulator you can't afford to use them. A high VI finished oil is necessary today not matter how it is acheived, and if you can't make it, not many who are knowledgeable will buy your oils.
Case in point, both M1 0W-30 and 0W-50 race oils are high VI products, especially the later. I don't know if they contain any VIIs but if your race oil doesn't have a VI of at least 170 it's not a competitive oil today.
I did not say that I necessarily
agree with him on this, just that this is what he is trying to accomplish.
(But I have to ask, if it is not because of it's added VIIs (even their low molecular weight polymer thickeners), then
WHY does the Toy juice shear down to ~15 weight in use??
)
In any case, I would be willing to
try his 0W-30 when it is released, even at his 300V/Torco SR5-like price points.