This is for an internet friend in the land of the Kiwi, who needs advice on how to clean his currently off-the-car turbo.
The car wasn't born in France, unfortunately but I'm sure we won't hold that against him will we
Kerosene has been proposed but I wonder how the bearings will like that treatment?
Also, when flicked with a finger, the blades only rotate ¼ turn, shouldn't they spin more freely than that?