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Why my motor oil have both JASO MA2 / MB #4469452
07/24/17 09:09 PM
07/24/17 09:09 PM
Joined: Aug 2016
Posts: 7
Vietnam
Duy Offline OP
Duy  Offline OP
Joined: Aug 2016
Posts: 7
Vietnam


My motor oil have MA2 / MB on the label. Is it possible that an oil meet both JASO MA2 and MB ?

Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469461
07/24/17 09:16 PM
07/24/17 09:16 PM
Joined: Oct 2015
Posts: 287
Washington
Dylan1303 Offline
Dylan1303  Offline
Joined: Oct 2015
Posts: 287
Washington
Nice hands


12 cruze rs 1.4t 6spd pp 5w30 tuned on 22psi
13 equinox 2.4 awd pp 5w30
Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469463
07/24/17 09:19 PM
07/24/17 09:19 PM
Joined: Aug 2016
Posts: 7
Vietnam
Duy Offline OP
Duy  Offline OP
Joined: Aug 2016
Posts: 7
Vietnam
focus on the oil, please frown

Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469477
07/24/17 09:34 PM
07/24/17 09:34 PM
Joined: Oct 2011
Posts: 2,996
Chicago, IL
Brybo86 Offline
Brybo86  Offline
Joined: Oct 2011
Posts: 2,996
Chicago, IL
I think those are his feet.
From lubrizol website....

"JASO MA lubricants are in fact suitable for all applications, MB lubricants may induce clutch slippage in motorcycles and must only be used in scooters."

Basically MA is for wet clutches.
MB is for non wet clutch such as cvt or separate gear boxes.

MB is basically meaningless I think almost any oil can meet MB


Last edited by Brybo86; 07/24/17 09:42 PM.

08 Honda Accord EX-L 2.4L M1 EP 0w20 145k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 193k
95 Yamaha Jog
Re: Why my motor oil have both JASO MA2 / MB [Re: Brybo86] #4469553
07/25/17 01:56 AM
07/25/17 01:56 AM
Joined: Feb 2015
Posts: 2,362
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,362
Slovenia EU
Originally Posted By: Brybo86


MB is basically meaningless I think almost any oil can meet MB



I dont think so.... Dont forget that JASO Mx means also to protect gearbox (shared sump!)

MB is energy conserving version of an MA


2008 Toyota Yaris 1ND-TV 1.4 D4-D Elf FullTech FE 5w30
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469736
07/25/17 07:09 AM
07/25/17 07:09 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
It is an interesting question since none of the defining three properties.... DFI, SFI and STI overlap at all between MA-2 & MB:

http://www.oilspecifications.org/articles/JASO_MA_JASO_MB.php



Multiple Diesel and Gasoline vehicles
Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469745
07/25/17 07:15 AM
07/25/17 07:15 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA


Multiple Diesel and Gasoline vehicles
Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469771
07/25/17 07:46 AM
07/25/17 07:46 AM
Joined: Sep 2007
Posts: 1,030
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 1,030
TX, USA
Unlike in the US, company is not going to be sued because they put anything that is not true on the label.

Are you sure that is a US products?


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: Why my motor oil have both JASO MA2 / MB [Re: ArcticDriver] #4469774
07/25/17 07:49 AM
07/25/17 07:49 AM
Joined: Aug 2016
Posts: 7
Vietnam
Duy Offline OP
Duy  Offline OP
Joined: Aug 2016
Posts: 7
Vietnam
The website has not been updated for a long time. The product label has been changed from "semisynthetic" to "synthetic" since last year. But the recent change from MA-2 only to MA-2/MB is not easy to understand.

Is it possible that German manufacturer has a different way to define their products?

Re: Why my motor oil have both JASO MA2 / MB [Re: JMJNet] #4469776
07/25/17 07:50 AM
07/25/17 07:50 AM
Joined: Aug 2016
Posts: 7
Vietnam
Duy Offline OP
Duy  Offline OP
Joined: Aug 2016
Posts: 7
Vietnam
Originally Posted By: JMJNet
Unlike in the US, company is not going to be sued because they put anything that is not true on the label.

Are you sure that is a US products?


No, Wolver is from Germany

Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469841
07/25/17 08:34 AM
07/25/17 08:34 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
Originally Posted By: Duy
The website has not been updated for a long time. The product label has been changed from "semisynthetic" to "synthetic" since last year. But the recent change from MA-2 only to MA-2/MB is not easy to understand.

Is it possible that German manufacturer has a different way to define their products?


JASO is a standard rating and cannot be re-defined by region to the best of my knowledge.
This is some good reading:

http://www.mototribology.com/articles/jaso-explained-part-1/

Even using the latest 2016 criteria, I don't understand how it is possible to meet atleast one MB requirement while simultaneously meeting the three MA-2 requirements since there is no overlap in any of the 3 parameters.





Multiple Diesel and Gasoline vehicles
Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469851
07/25/17 08:43 AM
07/25/17 08:43 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
Does your container actually show this square symbol? :



If not, then it is not actually JASO rated but might be an example of a product that only claims to "meet" the requirements...apparently a "Univeral" oil ?

Last edited by ArcticDriver; 07/25/17 08:50 AM.

Multiple Diesel and Gasoline vehicles
Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4469887
07/25/17 09:18 AM
07/25/17 09:18 AM
Joined: Feb 2016
Posts: 686
NJ, USA
MotoTribologist Offline
MotoTribologist  Offline
Joined: Feb 2016
Posts: 686
NJ, USA
There is no way for an oil to meet both MA and MB specifications simultaneously. It is either a misprint or a misrepresentation of the oil's performance.

As ArcticDriver pointed out (in such wonderfully made charts I might add) the two specifications are mutually exclusive of one another.

Re: Why my motor oil have both JASO MA2 / MB [Re: Duy] #4471511
07/26/17 10:45 PM
07/26/17 10:45 PM
Joined: Mar 2008
Posts: 5,969
South Florida
bubbatime Offline
bubbatime  Offline
Joined: Mar 2008
Posts: 5,969
South Florida
If that's true that's some pretty shady marketing right there.


17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 Maxlife Syn 5W30
06 GMC Sierra Nextgen 10W30


Re: Why my motor oil have both JASO MA2 / MB [Re: Dylan1303] #4473273
07/28/17 05:41 PM
07/28/17 05:41 PM
Joined: Nov 2009
Posts: 26
USA
RDMgr Offline
RDMgr  Offline
Joined: Nov 2009
Posts: 26
USA
Toe thumbs......do you find that your hands are a little smelly?

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