Gasolines Containing Alcohol - Honda GXV340 Operating And Maintenance Manual

Gasoline spoils very quickly depending on factors such as light
exposure, temperature and time.
In worst cases, gasoline can be contaminated within 1 month.
Using contaminated gasoline can seriously damage the engine
(carburetor clogged, valve stuck).
Such damage due to spoiled fuel is disallowed from coverage by
the warranty.
To avoid this please strictly follow these recommendations:
Only use specified gasoline (page
To slow deterioration, keep gasoline in a certified fuel container.
If long storage (more than 1 month) is foreseen, drain fuel tank
and carburetor (page

GASOLINES CONTAINING ALCOHOL

If you decide to use a gasoline 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 gasohol that
contains more than 10% ethanol. Do not use gasoline containing
methanol (methyl or wood alcohol) that does not also contain
cosolvents and corrosion inhibitors for methanol. Never use
gasoline 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 gasoline that contains
alcohol, or one that you think contains alcohol, switch to a
gasoline that you know does not contain alcohol.
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