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Originally Posted by X5HogTown
It is freezing condensation in the line or breather, no question. My travel pattern did not change over 6 years so I'm starting to believe the dealer was correct in prescribing 0W-40. I'm not sure why this makes a difference but I'm hoping for a 4th problem-free winter.
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I had the same issue with the wife's X5 last year. I even posted some pictures up here of a cut open crank case vent hose so everyone can see the kind of gunk that builds up and freezes.
I ended up changing out the vent hoses, and switching to German Castrol 0-30, seems to have worked like a charm. No issues so far, even with the -25 we had down here in Calgary a few weeks ago.
To speak further about how short trips may affect this isssue, a couple of the tech's I spoke with indicated to me that short trips in cold weather will definitly exasperate the issue, due to the oil not getting hot enough to evaporate the built up moisture.
So just to be on the safe side, I make sure that ours get's a good thrashing once a day or so.
12-20-2007, 01:07 PM
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