Honda FES150/A Swing 150 Manual Del Propietário página 103

Viscosity:
Viscosity grade of engine oil should be
based on average atmospheric temperature
in your riding area. The following provides a
guide to the selection of the proper grade or
viscosity of oil to be used at various
atmospheric temperatures.
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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