Found an interesting idea concerning the addition of a small quantity of graphite introduced into cooling systems to inhibit corrosion.
Anybody ever heard of the process? The stuff is basically inert as far as doing any damage. I wonder if it would degrade heat transfer.
I haven't been able to find anything else about this technique

http://www.malibuwater.com/graphite.html

 

It's an interesting idea, but I'd like to know more before doing it. Why does the graphite stick to the walls? How do particles of suspended graphite become a layer that prevents corrosion (graphite is basically inert)? Does this layer become a huge continuous ground path, effectively neutralizing any electrolytic activity?

The idea of coating all the cooling passageways is not for the faint of heart.

Graphite has an extremely high thermal and electrical conductivity, so I doubt it will reduce heat transfer.

There are many things sold or marketed in the automotive aftermarket that claim to do things which cannot be disproved. However, the value of these things is unproven as well. I for one would assume this graphite idea is in this category until proven otherwise.

Dave

 

It's all just all marketing BS. Why not just use coolant?
After reading their site they sould like a bunch of TOOLS

 

why not just use Redline Water Wetter or something similar? Also, using a mixture of 60/40 or even 70/30 of distilled water/coolant will provide better cooling because water is what does the job, not the antifreeze itself. The antifreeze basically raises the water's boiling point, "enhances" water's ability to transfer the heat, acts as a lubricant for the water pump as well as acting as a corrosion inhibitor. However, when it gets colder, I stay with either a 60/40 or 50/50 mix.