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I think the BMW specs oil does a good job as well keeping the engine clean, at least in my car. So I am only using the Valvoline R&P from mostly curiosity (couple of 3000 miles oil changes cannot hurt), and because I got 3ea 5qrt for about $80. I am still at 500 miles, will change/cut open filter at 1000 miles.
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Help each other: if you manage to fix your issue (especially with help from this forum), don't be a d*ck and disappear. Follow-up by posting the solution so you can help others.
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