Why not Rotella T6 for a 998 engine
Billy, Tango has the 1330 Ace engine & new trans - clutch .......and T-6 works fine in this combo.........It's an SM oil so it's a No No for the 998 engine .....Mike :thumbup:
Hi,
I have been curious about all of this , and did some, not to say a lot, of reading on the subject. Following, please find an email from Shell Technical department, a cut and paste from the API organisation, and finally the definition of the JASO classification....
Here is the email I received from Shell Technical, in reply to my question:
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Hi Richard,
Rotella T6 meets JASO MA requirements for wet clutch performance and API SM and prior S categories for gasoline engines. API SM rating has an exception for dual use oils (API CJ-4/SM) so does not require the oil to be energy conserving. Neither does Rotella meet the ILSAC GF requirements. Rotella T6 is therefore suitable for many gasoline engine and wet-clutch applications. Feel free to call us at the number below if you need more information.
Regards,
Keith Perry
Shell Technical Information
(800) 237-8645 Option 3, 1
Email:
[email protected]
Technical data sheets and MSDS may be found at:
www.epc.shell.com
From: SSSCMLA shelllubricantsinquiries-us SIPC-DIO/P71
Sent: Tuesday, June 23, 2015 10:27 AM
To: SLUBE shelltechnical-us SLUBE; SLUBE
[email protected] SLUBE-DIU/831
Subject: FW: Rotella T6 use...
Original Text
Hi,
I would like to use Rotella T6 in my Can-Am Spyders. I see that is JASO-MA certified, but also, it is SM class of oil. BRP (manufacturer of the Can-Am Spyders) advise to not use SM or ILSAC-GF4 in their engine, because wet clutch slippage will occur.... Spyders use the motor oil for both engine and transmission/clutch assembly.
So.... does the JASO-MA cancel the SM certification? Can we use the Rotella T6 in our engine/transmission/clutch assembly without any reason to worry? Could BRP void my warranty for doing so?
Thanks in advance for your answer. I really do appreciate it.
Richard Valiquette
{ticketno:[70942177]}
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Also, if you look at the API classification following link, http://www.apicj-4.org/2009_engine_oil_guide.pdf it is stated that:
"For all automotive engines currently in use. Introduced in 2004, SM oils are designed to provideimproved oxidation resistance, improved deposit protection, better wear protection, and betterlow-temperature performance over the life of the oil. Some SM oils may also meet the latest ILSACspecification and/or qualify as Energy Conserving."
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Finally, here is the definition of the JASO classification:
In 1998 the Japanese Automotive Standards Organization (or JASO for short) developed a grading system for motorcycle oils.
The grading system measured (amongst other things) an oils ability to resist clutch friction (or slippage), protection offered against engine wear and pitting in the gear box.
Up to 1998 car oils had been used as the base for many motorcycle oils. As car technology evolved over the years the oils that cars needed changed and additives were added that weren’t good for motorcycle engines (especially motorbike clutches and gearboxes, mainly due to the fact that, unlike most motorcycles, cars use a separate oil for the gearbox).
Car oils had been blended using more and more friction modifiers, which, although good for cars, wasn’t too good for motorcycles as these modifiers can cause clutches to slip at higher revs and gearbox pitting.
JASO introduced 2 ratings for 4 stroke motorcycle oils:
JASO MA – This was the standard for single unit engines where the wet clutch, gearbox and engine used the same oil. JASO-MA oils don’t contain friction modifiers.
JASO MB – This lower standard was for bikes that use separate oils for the engine, clutch and gearbox (e.g Harley Davidson’s and BMW’s).
Then in 2006 JASO introduced…..
JASO-MA2 – This specification was introduced in 2006 for modern motorcycle engines. As well as being a higher standard of oil the JASO-MA2 approval means the oil is suitable for use in bikes with catalytic converts in the exhaust system.
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So, in the reading of all of this, I don't see what could be "not good" in the shell Rotella T6 for a 998 clutch, compared to the 1330 ?
I was wondering if Bajaron would be kind enough to comment on the subject ? I understand he is recommanding/selling Amsoil, but up here, in Canada, it is not as easy to get everywhere as the Rotella is....
I am not challenging anybody on all that is being said on the "oil saga", but, I cannot see what would be wrong with the T6 oil..... i.e. the price is right, the availability great, and the performance, as per all of the 2 wheels bike forum, very much appreciated.....
Sorry for the long append....
Richard