Can I Use E85 Fuel in My Portable Generator?

E85 fuel should never be used. Generac portable generators are equipped with 4-stroke engines that require clean, fresh, unleaded gasoline. It's important to use fuel with a minimum rating of 87 octane and no more than 10% ethanol. Any modification to an engine's fuel system will put the unit's warranty at risk.

  • Apr 4, 2023
  • Knowledge

Title
Can I Use E85 Fuel in My Portable Generator?
URL Name
Can-I-Use-E85-Fuel-in-My-Portable-Generator

Public Answer
E85 fuel should never be used. Generac portable generators are equipped with 4-stroke engines that require clean, fresh, unleaded gasoline. It's important to use fuel with a minimum rating of 87 octane and no more than 10% ethanol. Any modification to an engine's fuel system will put the unit's warranty at risk.
Was this article helpful?
Upload Files


Need more help? Get in touch with our support team.


Contact Support