Holy viscosity index

Joined
Dec 19, 2018
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Location
Vancouver
Oil change due on my sister's Mini. Local supplier recently started stocking Total Ineo Dynamics 0w20, LL-17FE+

[Linked Image from i.imgur.com]


http://catalog.lubricants.total.com/en/products/fs7-1/QUARTZ-INEO-DYNAMICS-0W-20
 
That is high but not abnormally so.. the question is what compromises(if any) were included to get it that high.
 
highest I have seen.....not that I have actively searched...but seems a lot higher than the ones I have seen....What are the other ones over 200?
 
VI is a good measure and it's pretty high in Total. But what's more important I think is how viscosity changes relative to temperature range which has big influence on oil viscosity.
For example Castrol Edge 0W-20 has lower VI (172) then Total, but @40C (43.6) and @100C (8.4) is higher on both counts.
 
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