thank you for the donation,
This dirty coolant is a result of poor cooling system maintenance old degraded coolant and chemical reactions with all the different materials in the cooling system, just flushing is often not enough, you need to run a cooling system cleaner and corrosion neutralizer as well, these are readily available from cooling system repairers, when the system is cleaned completely and fresh coolant is added you should have no problems, it is also a good idea to check the cooling system for stray current, most radiator shops can do this simple test that may save you a fortune if the problem is detected.
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Sunday, November 22nd, 2009 AT 6:06 PM