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Old 12-10-2007, 05:48 PM   #46
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Join Date: Sep 2006
Location: CA
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My Ride: '01 330i ZSP ZPP
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Very informative thread... I recently started using Mobil 1 0w-40 instead of the BMW branded Castrol 5w-30, at which point my VANOS cold idle near stalls became actual stalls which killed the engine. Rather than try switching back to what I was using before, this has prompted me to pick up the replacement unit from Dr. Vanos and fix the problem once and for all. I remember seeing some of the original posts about the O-rings being made of Buna, glad to see that analysis finally turned into some actual products we can use.
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