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      03-31-2009, 05:40 PM   #3
dirtyylicous
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Drives: IS300
Join Date: Jun 2008
Location: CT

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There both good oil. I used royal purple in my lexus and i acuatally felt a tiny boost. Also mpgs were better.

But i read on here some where bmw says only to use bmw and mobil 1 or something like that. Royal purple is also $$$$. Just stick with mobil 1.