Honda CRF230F 2017 Owner's Manual page 102

CRF230F
W
!
arning
Petrol is highly flammable and explosive. You can
be burned or seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame

away.
Refuel only outdoors.

Wipe up spills immediately.

Use unleaded petrol with a research octane number
of 95 or higher.
NOTICE
If "spark knock" or "pinking" occurs at a steady
engine speed under normal load, change brands of
petrol. If spark knock or pinking persists, consult your
Honda dealer. Failure to do so is considered misuse,
and damage caused by misuse is not covered by
Honda's Limited Warranty.
Occasionally you may experience light spark knock
while operating under heavy loads. This is no cause
for concern, it simply means your engine is operating
efficiently.
Petrol Containing Alcohol
If you decide to use a petrol containing alcohol
(gasohol), be sure it's octane rating is at least as
high as that recommended by Honda. There are
two types of "gasohol": one containing ethanol,
and the other containing methanol. Do not use
petrol that contains more than 10 % ethanol.
Do not use petrol containing methanol (methyl or
wood alcohol) that does not also contain cosolvents
and corrosion inhibitors for methanol. Never use
petrol containing more than 5 % methanol, even if it
has cosolvents and corrosion inhibitors.
Fuel system damage or engine performance problems
resulting from the use of fuels that contain alcohol
is not covered under the warranty. Honda cannot
endorse the use of fuels containing methanol since
evidence of their suitability is as yet incomplete.
Before buying fuel from an unfamiliar station, try to
find out if the fuel contains alcohol. If it does, confirm
the type and percentage of alcohol used. If you notice
any undesirable operating symptoms while using a
petrol that contains alcohol, or one that you think
contains alcohol, switch to a petrol that you know
does not contain alcohol.
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