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  1. R

    Synthetic oil, when to use???

    I am wondering when will it be OK (miles)to start useing synthetic motor oil. The next oil change is coming up on my wifes car, 2003 v6, at 9500 miles. Can I start useing the synthetic oil yet. I ask because I have read that a new car needs to brake in before you use the oil. THANKS racenut :D