Ask Matt: Is it Safe to Run E10 or E15 in my Onan Genenator?

atc toy hauler with 5500 watt onan generatorThis month's "Ask Matt" question comes from Brian in California...

Brian: "I hear that you should not run E10 or E15 gas in the 5,500 watt Onan generator. But in California, you can't find ethanol-free anywhere. Is it really that important to use ethanol-free?"


Matt: I think it’s fine to run an ethanol blend gas in the Onan gen, as long as you use a reputable additive. You won’t want to leave the ethanol sitting around a long time (not that I would with regular gas either).

When your trailer is not in use, I recommend running the generator once a week or so, just to ensure it will start up quickly when you are out on a trip.

If you frequently use ethanol it might not be a bad idea to carry a couple of spare parts with you such as a fuel pump, some fuel line, and possibly a carb boring/gasket kit. Just my two cents of sense.

 - Matt


Editor's note: Matt Van Dyke also operates a diesel repair service along side his ATC Toy Hauler dealership, and knows a lot about engines.

Matt Van Dyke is the owner of Custom Outfitters, an ATC Toy Hauler sales and service center located in Brandon, South Dakota. Custom Outfitters has several ATC Toy Haulers currently in stock, including a 40 foot 5th wheel, a 28 foot front bedroom, and a 20 foot.

Visit Custom Outfitters or call Matt at (605) 838-8868.

Custom Outfitters
25935 482nd Avenue
Brandon, South Dakota 57005 


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