Is MCT-5 coolant okay to use with a restrictive CPU block?

antand

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Aug 26, 2006
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I have 2 bottles of MCT-5 coolant and wanted to get some opinions on using this coolant with a restrictive block like the Aquaextreme MP-05 LE?
 

gomerpile

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Feb 21, 2005
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I use the stuff from an auto shop, Anti Freeze Treatment, seems to prevent slime in the water, been running for 2 years straight, no slime yet. Have not flushed the system with this stuff. :wink:
 

phreejak

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May 11, 2006
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It's not the coolant you would have to worry about when using a restrictive water block - it's the tubing ID size and the pump that would have the most influence.
 

antand

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I've got the DD D-5 pump and using 1/2" ID tubing so I think that part should be okay.

I just didn't know if the viscosity of it would matter. I'm guessing since it's non-conductive there aren't any little particles in it to get clogged in the jets.