Dealers are notorious liars, but still doesn't hurt to change the original oil after a few hours/miles (did mine at 10 hrs) just to make sure any machining filings and what not are removed.
interesting comments, I use to work for a Valvoline distributor. one of our main purchasers was Robin manufacturing in Hudson WI. want to know what is the factory fill in most Fuji engines? Valvoline 15w-40 all fleet oil, no BS our company sold LOTS of oil to that facility and that was the only oil sold.
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