Quote:
Originally Posted by BuddyLee
You are probably right for the turbo car. I was instructed to let the oil cycle through the turbo but more after driving the car rather than starting the car. I let the engine idle for a minute when I come to a stop for that reason. Turbocharged engines need to cool down before turned off. ... That is sufficient for the engine oil to cool to a level that will not damage the turbocharger bearings.
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True if running dino oil, which could sit in the hot turbo and coke. Coke build up encourages more coking until things get plugged or pieces break loose and lodge, causing reduced flow. Sort of the automotive equivalent of plaque in the blood vessels leading to a stroke. Synthetic oil doesn't coke so it's much less of a concern.