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Originally Posted by landrovered
I idle my cars until the temp gauge starts to move. Cold oil in a revving engine is far worse than in an idling one.
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That's not really they best use of time or gas, plus in some cases leads to carbon buildup and/or cat problems. Just get in, start it up, and drive easily until it's warm. The engine, oil, and other stuff like the transmission that also need to warm up gets up to temp much much faster this way, not to mention the interior heat.
If you're really worried about it, give it 30 seconds and then go.
Also, just because the coolant temp needle is at ~180 or whatever you consider "warm" doesn't necessarily mean that the oil is anywhere near operating temp. I'm not sure on the Boxster, as I don't have an oil temp gauge, but my old VR6 would take about twice as long to warm the oil as it would the coolant. The Boxster has almost twice the oil capacity, so I'd assume it takes even longer.
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