Originally Posted by Brian553
SonOfJoe did mention in post #5094916 :
it's no stamp of approval, and is most likely only MA1, but is a tiny keyhole to where PCMOs stand in terms of wet clutch performance. Better than no keyhole.
Originally Posted by SonofJoe
The memory's beginning to fade now but as I recall, most of the Euro 10W30 PCMOs I formulated (even the lowly ones) passed the JASO friction test to MA.
Originally Posted by BusyLittleShop
JASO has approved 1,537 oils as of Dec 2019 which covers virtually
everything on the market... From 0w to mono grades... from 30 to 60
multi grades... from Auto to Cycle oils and yet not a single oil is
JASO tested to have defeated a wet clutch... in fact the results
of their market surveys are in a manner such that particular names of
submitters and their oil products are not identifiable... so NO I don't
see JASO as valuable as you do...
