Originally Posted by vlamica
I personally agree on this point but interestinly the manufactures that we work with Mercedes Benz and Volvo use factory fill Mobil 1 (Full syntetic) and Castrol syntec. Todays engines are broken in with synthetic.
I still wouldnt do it because im old school but technology has changed so much these days..
Vin, for me the newest engine I've had the pleasure of rebuilding is from the mid 70s which I consider old school.
I can't even imagine what the metals and and machining processes are like for these new fangled engines they're using in todays vehicles. On the older engines if you try and break them in with synthetic you're never going seat the rings.
Personally I like the older stuff, I can understand it.....