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      08-20-2018, 09:04 PM   #15
LastMCar
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Drives: E90 m3
Join Date: Oct 2015
Location: Las Vegas

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Quote:
Originally Posted by roastbeef View Post
and the grey piece at the bottom of that pictured device is the inner diameter of the tubing where the oil flows?
No. The oil flows to the housing thermostat eventually heating up and causing it to open, allowing passage thru the system to the cooler. However, once fully heated and open the thermo sensor remains in the oil flow disrupting the efficiency of flow. Someone can correct me if I’m wrong but that is my analysis after looking at the components.
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