RE: [ST] Mobil 1 15W-50 SuperSyn Oil

["Big Riff" <big_riff@xxxxxxxxxxx>]

Not sure if this helps you, but I've been using Motul 5100 for the last 
three seasons.  It is JASO MA rated, and I think API SG rated as well - no 
clutch slippage at all.

John in NJ
'01 BRG ST


>At the outset I'd like to state that I'd prefer that this does not evolve 
>into another full-blown oil thread.  Specifically I'd rather not receive 
>everyone's opinion as to which is the best oil to use.  I do, however, wish 
>to poll the listers for some specific oil information.
>
>My goal is to determine, if possible, whether the Mobil 1 15W-50 SuperSyn 
>full-synthetic oil ('red cap') that is available from WalMart, will cause 
>any clutch problems on our bikes or not.
>
>I already know that this oil is NOT labelled as 'EC' or 
>'energy-conserving', which normally is a good thing, and means that it 
>doesn't contain friction modifiers that can cause wet clutch slippage.  
>However, in addition to the API SH rating (which is also a good thing), 
>this oil is also rated API SJ.
>
>From an online document that I read recently:
>
>"All of us motorcycle specific oil manufacturers have always stated not to 
>use automotive oil in motorcycles.  As of late everyone is now saying that 
>too including: magazine editors, automotive oil manufacturers and OEMs.  It 
>all started with the introduction of API SJ rated motor oils.  The Energy 
>Conserving specs do not allow the use of certain anti-wear materials like 
>zinc for instance.  So to make up for those missing anti-wear ingredients 
>they add Friction Modifiers and these are known to make wet clutches slip. 
>API SJ is fairly new and already JASO has stepped in with their MA and MB 
>certifications because of the large problems that the API SJ ratings have 
>caused in regards to wet clutch slippage."
>
>There's no 'EC' on the jug of non-Triumph Mobil 1 that I have, yet it is 
>API SJ-rated ...... hmmmmm.
>
>Enter the JASO MA spec, which apparently only relates to the clutch 
>slippage issue.  If you check the latest documentation from Triumph, only 
>oils that meet the API SG or SH AND the JASO MA designation are 
>recommended.  The Mobil 1 15W-50, SuperSyn, full-synthetic oil ('red cap' 
>from WalMart) does NOT carry the JASO MA designation.  So thus far it 
>appears that this oil could become a problem.
>
>It almost seems to me that the inclusion of JASO MA in the motorcycle 
>recommendation could be just an attempt to further qualify an API SJ-rated 
>oil.  In other words, if the oil in question happens to be SJ-rated (in 
>addition to SG or SH) AND it is JASO MA compliant, then it will be ok to 
>use in a motorcycle with a wet clutch.  Still it seems that Triumph has 
>been careful not to mention the SJ rating at all.  BTW, has anyone actually 
>looked at a jug of the Triumph-branded stuff to see if it is actually 
>stamped 'MA'?   Someone recently suggested to me that it isn't, which 
>struck me as a bit ironic.
>
>Now this could mean that Mobil hasn't (for whatever reason) submitted this 
>oil to determine if it will meet the JASO MA spec (it is, after all, a 
>Japanese spec), but it could also mean that it DOESN'T meet the spec.  It 
>could also be that Mobil doesn't want to interfere with the sale of the 
>motorcycle-specific, and hideously-expensive, Mobil 1 that is only 
>available through dealerships.
>
>It is my understanding that a number of Sprint listers are already using 
>this WalMart-variety oil without any apparent clutch-slippage problems.  So 
>I would like to get some idea of how many people actually use this cheaper 
>Mobil 1 oil, and of the time period that they have been using it.
>
>Thank you for having the patience to wade through all this.
>
>Neil
>
>
>
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