Motor oil with the highest viscosity index

Status
Not open for further replies.
Is this just curiosity? I can't see it being a big issue with you living in Brazil...
21.gif
 
Originally Posted By: Ohle_Manezzini
You can't. Maybe he can.


Do you have a hypothetical scenario that involves a climate that mirrors that of Brazil that makes Viscosity Index the most important characteristic of a fully formulated motor oil? Because I can't think of one. Hence my question to the OP regarding the purpose of this pursuit, as I'm curious regarding the motivator, if there is one, above and beyond simple curiosity.
 
Originally Posted By: JumentoRider
Which is the motor oil with the highest viscosity index?

So far, I've find online, from different brands:

HP2 Phenix 905HP Maxi Power 0W20 (VI of 258)
http://www.hp2lab.com/contents/fr/d420_Page_430.html

Eneos Sustina 0W-20 (VI of 229)
http://www.eneos.us/wp-content/uploads/2016/01/ENEOS-SUSTINA-Product-Data-Sheet-2015.pdf


That HP2 Phenix stuff in your post has the highest VI of any motor oil I've ever heard of.
Eneos Sustina has previously been the VI champ of BITOG.
 
Originally Posted By: JumentoRider
Which is the motor oil with the highest viscosity index?

So far, I've find online, from different brands:

HP2 Phenix 905HP Maxi Power 0W20 (VI of 258)
http://www.hp2lab.com/contents/fr/d420_Page_430.html

Eneos Sustina 0W-20 (VI of 229)
http://www.eneos.us/wp-content/uploads/2016/01/ENEOS-SUSTINA-Product-Data-Sheet-2015.pdf


Are you compiling a list of Engine oils with high VI and shear stability and for what reason?

Getting caught in one or two specifications keeps one from seeing the complete picture.
 
I haven't seen any manufacturer specify Viscosity Index for their engines, nor API or ACEA specs that call for V.I. minimums.
 
Originally Posted By: OVERKILL
Originally Posted By: Ohle_Manezzini
You can't. Maybe he can.


Do you have a hypothetical scenario that involves a climate that mirrors that of Brazil that makes Viscosity Index the most important characteristic of a fully formulated motor oil? Because I can't think of one. Hence my question to the OP regarding the purpose of this pursuit, as I'm curious regarding the motivator, if there is one, above and beyond simple curiosity.


I think you're assuming the question has to be applied to the climate where the op lives. He never said that. Maybe he Wants to know, just that. Motorcyclists would be favoured by a stable viscosity i.e. an oil that doesn't shear much, having little VII since a good quality high VI oil would help in that department. Not every need comes from the climate, but from the type of equipment, like a shared sump tranny oil.
 
Last edited:
Originally Posted By: Ohle_Manezzini


I think you're assuming the question has to be applied to the climate where the op lives. He never said that. Maybe he Wants to know, just that.


Actually I'm not. My original question, to the OP, was exactly:

Originally Posted By: OVERKILL
Is this just curiosity? I can't see it being a big issue with you living in Brazil...
21.gif



Which, coincidentally, is the first quote of mine you replied to and implied that there may be a situation (in Brazil) where it in fact did:

Originally Posted By: Ohle_Manezzini
You can't. Maybe he can.


So now we've gone full circle and you've basically gone and re-stated my original question to the OP as if this is a revelation.

At this point I'm not entirely sure as to the purpose of this exchange, but so far the yield has been something I would not classify as productive
21.gif


He hasn't responded to my initial question as to the purpose of the inquiry (which would garner more situationally appropriate responses if climate is not the driver) nor any of your posits as well. Until the OP returns, I see very little benefit to our continued engagement.
 
Originally Posted By: CT8
High VI in a finished engine oil means higher viscosity improver amounts.


Do you really think so? Oils don't have natural Viscosity Index, some more other less?
 
Originally Posted By: Ohle_Manezzini
Originally Posted By: CT8
High VI in a finished engine oil means higher viscosity improver amounts.


Do you really think so? Oils don't have natural Viscosity Index, some more other less?


If PAO6 has a VI of 135-140, and a finished oil is somewhere from 160-200+, then obviously:
* anything over 140 has VII
* the higher the VI, the more VII for any given basestock.
 
How bout minding your own business and staying out of people's threads when you add. O thing of value to them

Go home buddy!
 
Originally Posted By: Ohle_Manezzini
Originally Posted By: CT8
High VI in a finished engine oil means higher viscosity improver amounts.


Do you really think so? Oils don't have natural Viscosity Index, some more other less?


As Shannow mentioned, once you get much past the VI's of the base oil, which is nowhere near the "highest viscosity index" as per the title of this thread, then you are going to have VII's. You can blend a 0w-20 without VII's, but its VI is going to be around 160 IIRC, just as an example.
 
Originally Posted By: Shannow
Originally Posted By: Ohle_Manezzini
Originally Posted By: CT8
High VI in a finished engine oil means higher viscosity improver amounts.


Do you really think so? Oils don't have natural Viscosity Index, some more other less?


If PAO6 has a VI of 135-140, and a finished oil is somewhere from 160-200+, then obviously:
* anything over 140 has VII
* the higher the VI, the more VII for any given basestock.


Not at all, Again. Mpao has a viscosity index of 200, without any VII.
coffee2.gif
 
Last edited:
Status
Not open for further replies.

Similar threads

S
Volvo iShift Transmission Oil - The Saga
Replies
4
Views
2K
4WD
F
Which Oil Should I Use For My Cars?
Replies
3
Views
4K
71Chevyguy
R
is mazda fz really a unique ATF or just rebranded toyota ws ?
2
Replies
31
Views
30K
YZJB
JumentoRider
  • Locked
Highest viscosity index - Shear free motor oil
Replies
6
Views
3K
Shannow
Z
  • Locked
Fresh Motor, What Oil?
2
Replies
20
Views
6K
SilverFusion2010
Back
Top Bottom