HONDA TRX420TE/FE - Manual (Page 217)

209
Petrol Containing Alcohol
Technical Information
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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