Honda XR250 Tornado 2016 Owner's Manual page 132

XR250 TORNADO
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
P
flame away.
Refuel only outdoors.
P
Wipe up spills immediately.
P
Use unleaded petrol with a research octane number
of 91 or higher.
The use of leaded petrol will cause premature
damage to the catalytic converter.
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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