Hi Duff, those same companies will also tell you that using the wrong oil will do as much damage and is probably responsible for more blown turbos than not letting the engine cool down.
But of cause, you can put a turbo timer on your vehicle and it will stop your cheapo oil doing any damage, it will stop your battery from going flat, it will even stop you getting piles.
My point is not that a turbo timer will not work, the point is that on the very few times that you need to cool the engine because of hard driving where you could just simply let it idle on those rare occasions, just does not make them a needed device.
If you are a serious 4WD driver, you will know on those few occasions, when you have to let the engine idle to allow the turbo to cool.
If anyone out there who does not have a turbo timer on the vehicle, lets hear how often you have to actually sit there and let the turbo cool.
If the manufactures were genuine, they would put something on the vehicle in the first place.
As in One_Iot’s posting, they want you to idle for 10 seconds.
On this point a I am not sure that it is to cool down the oil or just to make sure the turbo is lubricated properly before you stop the engine.
But if it were a problem I’m sure they would do something about it.
One_Iot, does it say why to let the motor run for 10 seconds?
Cheers


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