Honda SPORTRAX 250EX, Owner'S Manual, Page: 95 / 210

＋
91 (or higher)
unleaded type
research octane number
87
Fuel Recommendation
Servicing Your Honda
Fuel
Saf ety Precautions
Petrol Containing Alcohol,
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.
Use of lower octane petrol 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 petrol. If pinging or spark knock persists, consult
your Honda dealer.
Never use stale or contaminated petrol or an oil/petrol mixture. Avoid
getting dirt, dust, or water in the fuel tank.
Your engine is designed to use any petrol that has a pump octane
number (R
M)/2 of 86 or higher, or a research octane number of 91 or
higher. Petrol pumps at service stations normally display the pump
octane number. For information on the use of
see page
.
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