Let your Turbo spin down.
As far as I was aware the need to let your engine idle was not particularly due to heat but because the turbo spins at many 10,000's of RPM & takes quite a while to spin down & stop. If you switch off your engine as soon as you stop then the oil pump if off, oil is not pumped, oil is not fed to the turbo & so the bearings are starved of oil - ouch premature turbo failure!
As far as I was aware the need to let your engine idle was not particularly due to heat but because the turbo spins at many 10,000's of RPM & takes quite a while to spin down & stop. If you switch off your engine as soon as you stop then the oil pump if off, oil is not pumped, oil is not fed to the turbo & so the bearings are starved of oil - ouch premature turbo failure!


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