RE: ONAN / CUMMINS - GAS

And here is the GAS information from the Manual:

Gasoline Generators — Treat the engine of your Cummins Onan generator to a good grade of regular unleaded gasoline and it’ll purr in response. You can also use Gasohol (gasoline blended with alcohol) if it contains the correct additive mixture percentages:

• Ethanol Blend — Not more than 10% ethanol.
• Methanol Blend — Not more than 5% methanol and the fuel must also contain
solvents and corrosion inhibitors.

NOTE: Fill up with fresh gas! The single most common service issue is stale or contaminated fuel. Always use fresh gas! The gas should not be more than 30 days old. Fuel stabilizer extends the life of your fuel. Stale fuel clean-out is not covered under your warranty.