Thats a good question. I don't see how an engine could properly "break in" using synthetic oil. Synthetic is supposed to eliminate engine wear, to break in an engine means slight engine wear. I would use conventional motor oil to about 10k to allow the engine to fully break in. Then switch to a true synthetic oil like Mobile 1.
You might want to research brands. There are a lot of oil's claiming "full synthetic" but are actually petroleum based. Amsoil and Mobile 1 are true synthetic. Penzoil "Synthetic" is a petroleum base.
Stay away from Fram oil filters, they are junk.
Last edited by jwko : 08-20-2008 at 11:58 PM.
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