new motors are at such close machining that very little change takes place from 0 miles to 1000 miles if any,valve train is the only thing subjected to break in and that is minimal.i just replaced my oil,filter at 500 with mobil 1 0/20 synthetic .hope this helped dave
Break In...
I was up at the dealership here yesterday and I was talking to one of the Techs there. I asked him about the break in process for the Koup and how long that is. He told me the cars were pre-broken in the factory before they got them on the lot. Does anyone know if this is true? 
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