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Re: [ST] 15-50 Mobil one available



> OK, I'll bite, what's JASO?
JASO is a Japaneese oil standard.  Specifically the MA rating doesn't have
friction modifiers.
My 2002 ST/RS Service Manual states "All Triumph fuel injected engines must
be filled with 10W40 or 15W40 semi or full synthetic motorcycle engine oil
which meets API-SG or SH AND (in italics and underlined) JASO MA
specifications." "Mobil 1 Racing 4T----meets and exceeds these minimum
requirements"
It goes on to warn about greater than 10W40 and no 0W or 5W plus restates
the JASO MA warning.
I would be a years worth of pay checks that Red Cap meets or exceeds th JASO
MA rating but Mobil just didn't want it to compete with their motorcycle
only oils plus they didn't want to spend the money to have it rated.
Rod


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