Honda TRX90X, Owner'S Manual

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Technical Information
196
Petrol Containing Alcohol
If you decide to use a petrol containing alcohol (gasohol), be sure its
octane rating is at least as high as that recommended above.
There are two types of gasohol: One contains ethanol, and the other
contains methanol. Do not use gasohol that contains more than
10% ethanol. Do not use gasohol that contains methanol (methyl or
wood alcohol) unless it also contains cosolvents and corrosion
inhibitors for methanol. Never use petrol containing more than 5%
methanol, even if it has cosolvents and corrosion inhibitors.
Engine performance problems resulting from the use of fuels that
contain alcohol are not covered under the warranty. Honda cannot
endorse the use of fuels containing methanol since evidence of their
suitability is not yet complete.
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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