Quote:
Originally Posted by Redd
Many cars use oil-water heat exchangers from factory to cool engine oil as it's very small packaging. But in general I don't think they perform as well as oil-air cos the coolant will also heat up and greatly reduce the performance of the heat exchanger. The other risk is that they are prone to leak inside the heat exchanger causing oil and coolant to mix and that's never good.
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So it’s odd then that this would be a Z4 GT3 marketed part, no? Isn’t P65 dry sump? Why would it need this?