Honda 450X 2005, Owner'S Manual & Competition Handbook

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* Suggested 4-stroke engine oils are equal
performance to SJ oils that are not labeled as
energy conserving on the circular API service
label.
Engine Oil
Refer to Safety Precautions on page 25.
Using the proper oil, 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.
Oil Recommendation
API
classification SG or higher except oils
labeled as energy conserving
on the circular API service
label
suggested oil* Pro Honda GN4, HP4
(without molybdenum
additives) or HP4M (with
molybdenum additives)
4-stroke oil or an equivalent*
viscosity
(weight) SAE 10W-40
JASO T 903 standard MA or MB
• 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” service label on the container. They
may affect lubrication.
• Oil is a major factor affecting the peformance
and service life of the engine.
Other viscosities shown in the following chart
may be used when the average temperature in
your riding area is within the indicated range.
NOT RECOMMENDED OK
Servicing Your Honda
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