Jaso T 903 Standard - Honda SH300 Owner's Manual

JASO T 903 standard

The JASO T 903 standard is an index for
choosing engine oils for 4-stroke
motorcycle engines.
There are two classes: MA and MB.
Oil conforming to the standard is labeled on
the oil container.For example, the following
label shows the MA classification.
(1) Code number of the sales company of the
oil
(2) Oil classification
93