Honda CRF50F Owner's Manual page 69

37GJGA00.book 59 ページ ２０２１年３月５日 金曜日 午後２時５０分
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.
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)
(2)
(1) Oil code
(2) Oil classification
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