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Base Viscosity of common oil question. #4585755
11/26/17 03:32 PM
11/26/17 03:32 PM
Joined: Mar 2008
Posts: 6,140
Michigan
ZZman Offline OP
ZZman  Offline OP
Joined: Mar 2008
Posts: 6,140
Michigan
What is the base Viscosity of common oils like a 5w-20 or 30 before Viscosity modifiers are added?


2003 Mercury Grand Marquis. PP HM 5w-30 and Fram Ultra
2008 Sebring Hardtop convertible. PP HM 5w-30 and Fram Ultra
2006 Kawasaki Vulcan 900 LT. Motul 7100 10w-40 and K&N
Re: Base Viscosity of common oil question. [Re: ZZman] #4585886
11/26/17 04:59 PM
11/26/17 04:59 PM
Joined: Dec 2002
Posts: 41,571
'Stralia
Shannow Online content
Shannow  Online Content
Joined: Dec 2002
Posts: 41,571
'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 05:55 PM
11/26/17 05:55 PM
Joined: Jun 2002
Posts: 19,525
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,525
Iowegia - USA
For transmission Fluids, see slides starting at #40:

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


Scars remind us of where we have been, but do not have to dictate where we are going.
Re: Base Viscosity of common oil question. [Re: Shannow] #4586263
11/27/17 04:26 AM
11/27/17 04:26 AM
Joined: Mar 2013
Posts: 794
UK
weasley Offline
weasley  Offline
Joined: Mar 2013
Posts: 794
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 04:38 AM
11/27/17 04:38 AM
Joined: Dec 2002
Posts: 41,571
'Stralia
Shannow Online content
Shannow  Online Content
Joined: Dec 2002
Posts: 41,571
'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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