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Base Viscosity of common oil question. #4585755
11/26/17 04:32 PM
11/26/17 04:32 PM
Joined: Mar 2008
Posts: 5,943
Michigan
ZZman Offline OP
ZZman  Offline OP
Joined: Mar 2008
Posts: 5,943
Michigan
What is the base Viscosity of common oils like a 5w-20 or 30 before Viscosity modifiers are added?


2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
2008 Sebring Hardtop convertible. Rotella T6 Multi-Vehicle oil
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40
Re: Base Viscosity of common oil question. [Re: ZZman] #4585886
11/26/17 05:59 PM
11/26/17 05:59 PM
Joined: Dec 2002
Posts: 40,895
'Stralia
Shannow Online content
Shannow  Online Content
Joined: Dec 2002
Posts: 40,895
'Stralia
Here's a mobil blend guide for their PAO product.



Calculating across
5.6, 5.3, 5.1, 7.0, 6.7, 6.9, 8

Re: Base Viscosity of common oil question. [Re: ZZman] #4585944
11/26/17 06:55 PM
11/26/17 06:55 PM
Joined: Jun 2002
Posts: 19,236
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,236
Iowegia - USA
For transmission Fluids, see slides starting at #40:

https://bobistheoilguy.com/automatic-transmissions-study/


Reading is fundamental; understanding is not a given ability.
Re: Base Viscosity of common oil question. [Re: Shannow] #4586263
11/27/17 05:26 AM
11/27/17 05:26 AM
Joined: Mar 2013
Posts: 768
UK
weasley Offline
weasley  Offline
Joined: Mar 2013
Posts: 768
UK
Originally Posted By: Shannow

Calculating across
5.6, 5.3, 5.1, 7.0, 6.7, 6.9, 8


That is just the base oil viscosity - you're not accounting for the viscosity of the DI pack. Not sure if the OP wanted this or not.


2017 SEAT Leon 1.4 EcoTSI 150 FR Technology DSG
2018 Volvo XC60 D4
2011 KTM 990 SMT
Re: Base Viscosity of common oil question. [Re: weasley] #4586265
11/27/17 05:38 AM
11/27/17 05:38 AM
Joined: Dec 2002
Posts: 40,895
'Stralia
Shannow Online content
Shannow  Online Content
Joined: Dec 2002
Posts: 40,895
'Stralia
Originally Posted By: weasley
Originally Posted By: Shannow

Calculating across
5.6, 5.3, 5.1, 7.0, 6.7, 6.9, 8


That is just the base oil viscosity - you're not accounting for the viscosity of the DI pack. Not sure if the OP wanted this or not.


LOL, can only work with the tools I've got...but yes, you are 100% correct.

But even still, assuming the same DI pack, the trends are the same (same percentages), and the NOACK demonstrates it also


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