would anti-freeze work in a liquid cooling system?

[PYROMANIAC]

would anti-freeze be any good in a liquid cooled system?

[azhari]

Antifreeze is not as good as water for heat absorbtion and dissipation. However, if you are going to go to below freezing temperatures, then you have no choice but to add antifreeze to the water. Otherwise, water is better.

[Koooler King]

Just a thought ... antifreeze, ethylene glycol (aka "Prestone", etc.) is used to decrease freeze point and the additives will inhibit corrosion. The typical kind of mix (50%) used in autos will decrease the freeze point to -40 degrees ( C or F). The additives in Prestone were meant deal with all the different metals used in an auto engine system under adverse conditions. However, if corrosion is still a concern in a cpu cooler, you may be able to add one of those antifreeze additive boosters they sell at auto parts store. One way to go might be to use something like a 10% - 20% of inhibitor or antifreeze mix. Another cheap way to go for freeze protection, but not sure of the corrosion properties, would be a mix of windshield washer fluid and water. As the previous post mentioned, an antifreeze & water mix does not have the same heat capacity as plain water. Good luck.

Koooler King

PS: The corrosion problem is only an issue if you have aluminum components in your cpu cooler. If your heat sink and system are all copper with plastic fittings and parts, distilled water without additives is the best as long as freezing is not an issue. Good luck again!