Honda FourTrax Recon TRX250TM 2019 Owner's Manual page 201

Oxygenated Fuels
METHANOL (methyl or wood alcohol) up to 5% by Volume
You may use gasoline containing methanol containing up to 5%
methanol by volume as long as it also contains cosolvents and
corrosion inhibitors to protect the fuel system. Gasoline containing
more than 5% methanol by volume may cause starting and/or
performance problems. It may also damage metal, rubber, and
plastic parts of your fuel system.
If you notice any undesirable operating symptoms, try another
service station or switch to another brand of gasoline.
Fuel system damage or performance problems resulting from the use
of an oxygenated fuel containing more than the percentages of
oxygenates mentioned above are not covered under warranty.
Oxygenated fuels can damage paint and plastic. Be careful not to
spill fuel when filling the fuel tank. Wipe up any spills immediately.
NOTICE
Oxygenated fuels can damage paint and plastic. Damage caused by
spilled fuel is not covered by warranty.
Technical Information 191