What mix of antifreeze and water should I run for the best cooling? I also plan on using Redline Water Wetter, has anyone used this? I still need some freeze protection though. Any opinion on the Redline Water Wetter?? Thanks

 

SR,

Antifreeze concentrations over 35% start losing cooling efficiency. Over 50% really gets too viscous to do serious cooling, unless you are using Dex-Cool. The latent heat capacity of typical ethylene glycol is nowhere near as good as straight water. Dex-Cool has a little better capacity, but its not a huge difference. The water wetter will help in restoring some of that, but it can't do everything.

If you need freeze protection, by all means mix the coolant to provide adequate protection. You don't need any heavy-duty cooling when the air temperature is below 32°F. It would be far better to have to drain some coolant and add water in spring than to start changing freeze plugs. And you should always maintain at least 25-30% antifreeze just for the corrosion protection, pump and seal lubrication, and boil-over protection.