Fuel Recommendations - Honda EU6500is Owner's Manual

SERVICING YOUR GENERATOR

FUEL RECOMMENDATIONS

Use regular unleaded gasoline with a pump octane rating of 86 or
higher.
You may use regular unleaded gasoline containing no more than 10%
Ethanol (E10) or 5% Methanol by volume. In addition, Methanol must
contain cosolvents and corrosion inhibitors.
Use of fuels with content of Ethanol or Methanol greater than shown
above may cause starting and/or performance problems. It may also
damage metal, rubber, and plastic parts of the fuel system.
Engine damage or performance problems that result from using a fuel
with percentages of Ethanol or Methanol greater than shown above
are not covered under warranty.
Never use stale or contaminated gasoline or an oil/gasoline mixture.
Avoid getting dirt or water in the fuel tank.
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