Honda NSS250 2007, Owner'S Manual, Page: 99 / 233

unleaded
86 (or higher) type
pump octane
number
90
Fuel Recommendation
Fuel
Servicing Your Honda
Saf ety Precautions Refer to on page .
We recommend that you use unleaded fuel
because it produces fewer engine deposits
and extends the life of exhaust system
components.
Your engine is designed to use any
gasoline that has a pump octane number of
86 or higher. Gasoline pumps at service
stations normally display the pump octane
number. For information on the use of
oxygenated fuels, see page
.
Use of lower octane gasoline can cause
persistent ‘‘pinging’’ or ‘‘spark knock’’ (a
loud rapping noise) which, if severe, can
lead to engine damage. Light pinging
experienced while operating under a heavy
load, such as climbing a hill, is no cause
for concern.
If pinging or spark knock occurs at a
steady engine speed under normal load,
change brands of gasoline. If pinging or
spark knock persists, consult your Honda
dealer.
The use of leaded gas will damage the
catalytic converter.
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