Guys I'm after some feedback from people who use Joe Gibbs CSP Coolant Protector.
I was advised to use this product by my engine builder after my small block was rebuilt, I also had the radiator pulled and cleaned out. I mix the JB CSP with demineralised water, not regular town water.
My car doesn't run hot so all is good there however I have noticed that there is a brown scum inside the radiator when I check the level [my car has factory a/c so no overflow tank] I assume this scum is probably throughout the engine coolant passages.
Has anyone else had this issue, is it something I should be concerned about and how do I rectify the problem.??
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