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      03-22-2011, 05:52 PM   #11
jimmy ny
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Drives: 2011 bmw m3
Join Date: Jun 2010
Location: new york

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I have seen some mom and pop auto stores carry it. They will probably only carry Royal Purple 10w 60. Its ok to mix it. I bought 3 bottles on line from Turnermotorsports, so i had it in stock. Sure enough 2nd oil underfills it. I had to use my oil to top it off. Turner sells OEM Castrol.