Honda BIG RED 2009 Owner's Manual page 98

Oil Recommendation
API classification
viscosity (weight)
JASO T 903 standard
suggested oil *
* Suggested oils are equal in performance to SJ oils that are not labeled
as energy conserving on the circular API service label.
• Your Honda MUV does not need oil additives. Use the recommended
oil.
• Do not use oils with graphite or molybdenum additives. They may
adversely affect clutch operation.
• Do not use API SH or higher oils displaying a circular API energy
conserving service label on the container. They may affect lubrication
and clutch performance.
NOT RECOMMENDED
• Do not use non-detergent, vegetable, or castor based racing oils.
Engine Oil & Filter
SG or higher except oils labeled
as energy conserving on the
circular API service label
SAE 10W-30
MA
Pro Honda GN4 4-stroke oil (USA
& Canada), or Honda 4-stroke oil
(Canada only), or an equivalent
motorcycle oil.
OK
Servicing Your Honda 89