My Generac G2600 has gas in the oil

Judy, Generac portable generator oil recommendations. Above 40°F, use SAE 30. Below 40°F and down to 10°F, use 10W-30. Below 10°F, use synthetic 5W-30. Oil should be changed after the first 8 hours of operation and every 200 hours of run time thereafter.
Check the attached links,instruction and guides, Good luck
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http://www.generac.com/service-support/faqs/portable-generator-faqs

http://www.generac.com/service-support/faqs/home-backup-faqs

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Rated output is at full load. Units will produce power up to that limit and use gas accordingly. Very lite load = less output and less gas consumption, etc.

Check the oil. Some engines will shut down if the oil is low. Otherwise you probably have a dirty fuel filter and the carburetor fills up with gas long enough to start but isn't getting enough gas to keep it full.

First you need to identify, is there a spark at the plugs? Is there fuel getting the cylinders, it can be so many things until you define at least that, the solutions are too many to list

There is no way to reset it manually. It resets automatically after you run it a few hours.

check for spark when it cuts off also check the oil level some have a low oil shut off also dry and run it with the gas cap loose to see if the vent is plugged

what a **** generator, worked for 100 hours and now wont start anymore.
did all the checks and replacing of spark plug and oil etc, simply wont start, ****, ****, ****..... service is horrible too. they just give you the runaround.

check the oil level most products like this have a safety valve.

Go online to Generac and they have parts list and owners manuals online. They will ship you parts.