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Message: <blockquote data-quote="Firpo" data-source="post: 4318832" data-attributes="member: 45550"><p>I came to the same conclusion so I called Generac tech support. The guy explained that the break-in oil was simply good ol’ non-synthetic like we put in our cars 30+ years ago. At two years I changed it myself and now two years after that I just had the 25 hour service performed by factory authorized dealer. I was 4 hours early but again after a call to Generac they said it was close enough.</p></blockquote><p></p>