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RE: [ST] Mobil 1 15-50



Looking at latest 5 quart bottle of "red-cap" Mobil 1 SuperSyn Fully
Synthetic 15w-50 motor oil:

"Exceeds API Service SL, SJ/CF warranty requirements for gasoline and diesel
engines.  Meets European ACEA A3/B4-02, B3-98 and Japanese valvetrain wear
requirements.  Meets MB 229.1"  I apologize for the mis-representation.  The
MB is NOT the JASO standard but rather a well-used Daimler/Chrysler oil
standard.  I will try to call Mobil again today, and I will ask about the
JASO standard with this oil.

In my 2002 Triumph Service Manual (shop manual), issue 3 for the
Bonneville/T100, Bonneville America, Speedmaster; Lubrication section,
Engine Oil Specification subsection (8.8) it states:

"All Triumph engines must be filled with a 15w/50 semi-synthetic or
fully-synthetic motorcycle engine oil which meets API SG (or higher) AND
JASO MA specification.

I will hopefully get to check the Sprint manual this week to verify that one
as well.


Matt Heyer

- -----Original Message-----
From: owner-st@xxxxxxxxxx [mailto:owner-st@xxxxxxxxxx] On Behalf Of Colt45
Sent: Monday, August 09, 2004 7:29 PM
To: ST@xxxxxxxxxxxxxx
Subject: Re: [ST] Mobil 1 15-50

Racing 4T is a commonly available oil in Europe and is 15W-50.  I believe if
you check M1 MX4T is 10W-40. 

How did you find that M1 15W-50 is JASO MB?

Heyer, Matthew A. wrote:

>JASO did not come up, but that is my fault - I didn't ask because of my 
>research and finding that answer out.  Also, as I think someone else 
>just remarked, the new bottles of Triumph branded Mobil 1 4T say 15w-50 on
them.
>
>----- Original Message -----
>From: "Heyer, Matthew A." <mheyer@xxxxxxxxx>
>To: <ST@xxxxxxxxxxxxxx>
>Sent: August 9, 2004 10:46 AM
>Subject: RE: [ST] Mobil 1 15-50
>
>
>  
>
>>Alright - just called Mobil for the hell of it.  Now to add something 
>>to this discussion, they said that the red-cap 15w-50 Mobil 1 
>>synthetic is for cars, and the 4T 15w-50 Mobil 1 is for motorcycles
>>    
>>
>
>So they confirmed that M1 red-cap is MB-compliant and  4T is 
>MA-compliant, or did JASO not come up?
>
>Also, are we SURE that Triumph-branded M1 4T is actually 15W-50?
>
>  
>
>>But, they informed me that
>>the 4T has a higher anti-wear additive because the motorcycle engine 
>>operates at higher rpm.  They said, not a big difference, but there is 
>>a difference.
>>    
>>
>
>maybe it depends on how hard you rev the engine too ...... doh! :-)
>
>and maybe they focus on the 'anti-wear' issue because it invokes FUD, 
>whereas I think we seem to have a fair bit of evidence that suggests 
>that clutch slippage is not much of an issue, if any.
>
>  
>
>>Now, my guess would be that it is not something that any of us would 
>>notice if we change our oil around 4k miles.
>>    
>>
>
>Probably true, and more to the point.  I have a hunch that more 
>frequent changes has a more beneficial effect than that gained by what 
>appears to be only slight differences in the propotion of certain
additives.
>
>I, for one, would still like to hear from anyone that thinks they have 
>experienced any oil issues as a result of using the WallyWorld flavour 
>of Mobil 1 (red-cap).
>
>Neil
>
>
>
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- --
John Albright
'02 RS
'00 748
Chattanooga
C-RATs


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