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Old 01-10-2006, 08:08 AM   #9
rbennett
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Join Date: Dec 2005
Location: SoCal
Posts: 131
I think mfg's say start the car and drive immediately because they know most people garage their cars and the mfg's don't want the liability of carbon monoxide poisoning.

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.

This being the case, you have more wear concentrated along the wrist pin sides and more "blow by" contaiminating the oil.

As they say "Starting your car is a terrible thing to do"
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