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Originally Posted by rbennett
It was explained to me, for all internal combustion engines, the pistons are actually oval shapped at start up, they do not actually become circular until operating temps are reached.
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Can someone educate me, please?
Boxster used 0W oil which is extreme thin oil. Cold weather really has very little effect on the circulation of the oil. Cold weather is hard on battery and ignition. But once the engine started. There is no issue. Prolonged idling only adds more pullution and more carbon deposit on the injection system including valves. My 2 cents.