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      05-10-2009, 08:06 AM   #8
clark192
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Bahrain
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Drives: 2006 325i (EU)
Join Date: Aug 2007
Location: Bahrain

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So I checked a friend more knowledgeable than I, and he thinks that, with a heat exchanger which we have, it takes roughly 3-5 minutes longer to heat up the oil than the coolant to operating temps. So in my experience it took me about 10 minutes to heat up the coolant to 90C, so it looks like 15 min of easy driving before you are ready to go.
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