Thread: Anyone Use Royal Purple Break in Oil?
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Old 06-21-2009, 11:32 AM   #3
stikSS
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Drives: 2010 SS, 1999 SS, 1993 Z28
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Location: Sanford, NC
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I'm gonna leave the GM break in oil in mine, but then i gonna change it to either RP or Mobil 1 after 500 miles. Never used RP before, Mobil 1 has always been a great product for me....... so i'm undecided now.
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