Honda HSS622 Manuel De L'utilisateur page 31

RECOMMENDED OIL:
Use 4-stroke motor oil that meets or exceeds
t h e r e q u i r e m e n t s f o r A P I s e r v i c e
classification SE or later (or equivalent).
Always check the API service label on the oil
container to be sure it includes the letters SE
or later (or equivalent).
SAE 5W-30 is recommended for general use.
Engine oil is a major factor affecting engine performance and
service life. Nondetergent oils and 2-stroke engine oils are not
recommended because of inadequate lubricating properties.
Running the engine with insufficient oil can cause serious engine
damage.
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AMBIENT TEMPERATURE