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Originally Posted by shazikon  This is not the real reason why you to idle for 30 secs before switching off. The turbo gets really hot because of high RPM at which it runs.
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The engine should be running for the oil pump to work. To over come this problem, turbo timers are available which keep the engine running for specified amount of time even if you lock and leave.. the turbo timer runs the engine and switches the engine OFF after the specified time. thus keeping the turbo bearings lubricated and cool. |
more so in a petrol as comp to a diesel. but principle is the same. easy on starting till warm and coast before shutdown especially if you ve been driving hard