Honda 2003 ST1300lA, Owner'S Manual

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Engine Oil & Filter
API classification
SG or higher except oils labeled as energy
on the circular API service label
molybdenum additives) 4-stroke oil (USA
&Canada), or Honda 4-stroke oil (Canada
only), or an equivalent motorcycle oil.
viscosity (weight)
JASO T 903 standard
*
Suggested oils are equal in performance to SJ oils that are not labeled as
energy conserving on the circular API service label.
SAE 1 OW-40
M A
Your motorcycle 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.
suggested oil*
Pro Honda GN4 or HP4 (without
NO GOOD
OK
Do not use non-detergent, vegetable, or castor based racing oils.
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Servicing Your Honda