In my opinion the 3000 mile oil change interval is likely to change by the time this engine reaches production. I am sure the IAV engineers are well aware of the properties and useful lifespan of modern motor oils so I believe EM is just setting the bar low and giving most people an answer they have likely heard their entire lives and as such they accept readily. This also serves to set expectations low which results in a more positive experience down the line when the final determination is made which will very likely result in a longer oil change interval.
wasn't there a report saying one reason for the short change interval was the motor and transmission sharing the same oil as is commonly found with motorcycles .... I tried to find that thread but wasn't able to do so
Jim