I have heard numorous times that a VW has very hard rings, and needs along time to break in. And that changing to synthetics too soon will cause excessive oil consumption. as for dino's, I really don't know. But as for me, If I rebuild an engine, like say, a small block chevy, it goes to 500 miles and out comes the oil. tehn another at 3k and 5k intervals thereafter. when I took my new Hyundai to the dealer for its first oil change (it was free, thats why I went there) they recommended 3700 miles.I went in at 2500, and (with thoughts of all those particles floating around in my oil) they looked at me like I was on drugs for taking it in early. I just told them I wanted the oil out because of the break in particles and they informed me that the filter would hadle those very well, and they use no 'break-in' oil anyhow. I still got it changed, and changed again 2500 miles later so I could get on my 5K intervals again. But I do keep hearing that things are so well-machined that no 'early changes' are needed on todays cars. Maybe us 'old-worlders' are getting too cautios nowadays? But then again, we do worry about oil alot don't we??!!