Honda VTX1800R Owner's Manual page 91

Engine Oil & Filter
JASO T 903 standard
The JASO T 903 standard is an index
for 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
82
Servicing Your Honda
(1)
(2)