User Manual - Page 71

For CRF450X 2020.

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Engine Oil
Servicing Your Honda 63
Engine Oil
Refer to Important Safety Precautions on page 31.
Using the proper oil and oil filter, and regularly
checking, adding, and changing oil will help
extend the service life of the engine. Even the best
oil wears out. Changing oil helps get rid of dirt and
deposits. Operating the engine with old or dirty oil
can damage your engine. Running the engine with
insufficient oil can cause serious damage to the
engine.
* Suggested 4-stroke engine oils are equal performance
to SJ oils that are not labeled as energy conserving or
resource conserving on the circular API service label.
Your CRF does not need oil additives.
Use the recommended oil.
Do not use API SH or higher 4-stroke engine oils
displaying a circular API “energy conserving” or
“resource conserving” service label on the
container. They may affect lubrication.
Other viscosities shown in the following chart may
be used when the average temperature in your
riding area is within the indicated range.
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.
Oil Recommendation
API
classification
SG or higher except oils
labeled as energy
conserving or resource
conserving on the circular
API service label
viscosity
(weight)
SAE 10W-30
JASO T 903 standard MA
suggested oil* Pro Honda GN4 4-stroke
Oil (USA & Canada), or
Honda 4-stroke oil, or an
equivalent motorcycle oil
NOT RECOMMENDED RECOMMENDED
(1) oil code
(2) oil classification
31MKE710.book63ページ2019年3月11日 月曜日 午前10時47
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