I don't have enough knowledge and/or experience to have an opinion; I'd go to
an expert:
http://www.bostonengine.com/articles/fresh.html

My 2 cents,
Marc Perdue

The corruptor wrote:

> I think this could be a nice thread.... for a change!!!! (ha ha ha)
> I have my own idea on that... of course there is a big difference with
> todays car/van ans our old van / bus....., lets talk about old thec.....
>
> -How do YOU do or would do your new engine break-in????
> -How do you drive your vehicle in a break in.
> -First oil change????? 75 miles, 150miles, 500 miles
> -Second oil change
> -Oil grade???
> -Why do you think we do a break-in
> -What is a break-in??? (ha ha ha)